PHP stands for Hypertext Preprocessor. It is a widely-used open-source scripting language especially suited for web development and can be embedded into HTML.
PHP was originally created by Rasmus Lerdorf in 1994. It started as a set of CGI scripts written in C. Over the years, PHP evolved into a robust server-side scripting language with support for object-oriented programming, databases, and more.
On Windows: Download from https://windows.php.net/, extract, and set environment variables.
On Linux: Use package managers like apt: sudo apt install php
On Mac: Use Homebrew: brew install php
PHP scripts are run by a web server with PHP installed (like Apache). For CLI, you can execute PHP using the terminal:
<!-- Run a PHP file from terminal --> php filename.php
PHP code is written between <?php and ?> tags.
<!-- PHP syntax always starts with <?php and ends with ?> -->
<?php
// This is a single-line comment
/* This is a
multi-line comment */
// Use echo to print text
echo "This is a basic PHP script";
?>
This script demonstrates the use of the echo statement to output text.
<!-- Start of PHP script -->
<?php
// Print "Hello World" to the output
echo "Hello World";
?>
PHP can be embedded directly into HTML documents to generate dynamic content.
<!-- A simple HTML page with embedded PHP -->
<!DOCTYPE html>
<html>
<head>
<title>PHP in HTML</title>
</head>
<body>
<h1>Welcome</h1>
<p>
<?php
// Insert dynamic content inside HTML
echo "Today is " . date("l");
?>
</p>
</body>
</html>
Every PHP script starts with <?php and ends with ?>. This tells the server to interpret the code between these tags as PHP.
<?php
// This is valid PHP code
echo "PHP is running!";
?>
PHP is case-sensitive in variables, but not in keywords like echo.
<?php
$name = "Alice"; // Variable names are case-sensitive
echo $name; // Correct
// echo $Name; // Incorrect, would cause an undefined variable error
?>
Each statement in PHP ends with a semicolon (;). Missing semicolons will cause syntax errors.
<?php
echo "Line one"; // Each line ends with a semicolon
echo "Line two"; // Another statement
?>
PHP supports two types of single-line comments: // and #.
<?php
// This is a single-line comment using //
# This is a single-line comment using #
echo "Single-line comments work!";
?>
Multi-line comments span multiple lines using /* */.
<?php
/* This is a multi-line comment
that can span several lines
to explain more complex logic */
echo "Multi-line comments are useful.";
?>
PHP can be embedded within HTML to add dynamic content. The server interprets the PHP parts before sending the HTML to the browser.
<!DOCTYPE html>
<html>
<head><title>Embedded PHP</title></head>
<body>
<h1>Welcome</h1>
<p>
<?php
// Display today's date using embedded PHP
echo "Today is " . date("Y-m-d");
?>
</p>
</body>
</html>
Writing clean PHP code means using indentation, consistent naming, commenting where necessary, and avoiding unnecessary complexity.
<?php
// Good practice: use consistent formatting and spacing
$firstName = "John";
$lastName = "Doe";
// Combine names with a space
$fullName = $firstName . " " . $lastName;
// Output the result
echo "Full name: " . $fullName;
?>
Variables in PHP are declared by using the $ symbol followed by the variable name. The variable does not have a specific type when it is declared, PHP will determine the type automatically based on the value assigned.
<!-- Declare a variable named $name -->
<?php
$name = "John"; // Variable holding a string value
echo $name; // Output the value of $name
?>
When naming variables, the following rules apply:
$name is different from $Name).
<!-- Valid variable names -->
<?php
$firstName = "Alice"; // Starts with a letter
$_age = 25; // Starts with an underscore
$user123 = "Bob"; // Can contain numbers
echo $firstName . " " . $_age; // Output: Alice 25
?>
Values can be assigned to variables directly using the assignment operator (=).
<!-- Assigning different types of values -->
<?php
$number = 10; // Assigning an integer value
$price = 20.99; // Assigning a float value
$isAvailable = true; // Assigning a boolean value
echo $number . " " . $price . " " . $isAvailable; // Output the values
?>
PHP provides several predefined variables such as $_GET, $_POST, $_SERVER, and others that are commonly used in web development.
<!-- Example of using $_SERVER predefined variable -->
<?php
echo "Server Software: " . $_SERVER['SERVER_SOFTWARE']; // Output the server software info
?>
Constants are similar to variables but once set, their values cannot be changed. They can be defined using either define() or const.
<!-- Using define to create a constant -->
<?php
define("SITE_NAME", "MyWebsite"); // Define constant
echo SITE_NAME; // Output the constant value
?>
PHP provides functions such as gettype() and various is_* functions to check the type of a variable.
<!-- Check variable type using gettype() -->
<?php
$var = 10;
echo gettype($var); // Output: integer
?>
<!-- Use is_* functions to check types -->
<?php
$var = "Hello";
if (is_string($var)) {
echo "It is a string"; // Check if variable is a string
}
?>
In PHP, a variable can have its name determined dynamically using a variable variable.
<!-- Example of Variable Variables -->
<?php
$varName = "name"; // Define a variable
$$varName = "John"; // Create variable $name dynamically
echo $name; // Output the dynamically created variable
?>
PHP supports four scalar data types:
true or false.
<?php
// Integer type
$age = 30;
// Float type
$price = 19.99;
// String type
$name = "John Doe";
// Boolean type
$isActive = true;
echo $age . " " . $price . " " . $name . " " . $isActive;
?>
Compound types can hold multiple values:
<?php
// Array type
$fruits = ["apple", "banana", "cherry"];
// Object type (using a simple class)
class Car {
public $brand;
public $model;
function __construct($brand, $model) {
$this->brand = $brand;
$this->model = $model;
}
}
$myCar = new Car("Toyota", "Corolla");
echo $fruits[0]; // Accessing array element
echo $myCar->brand; // Accessing object property
?>
PHP has two special types:
<?php
// Null type
$data = null;
// Resource type (simulating database connection)
$connection = fopen("file.txt", "r");
var_dump($data);
var_dump($connection);
?>
Type casting is converting one data type to another. PHP provides explicit and implicit type casting.
<?php
// Explicit casting (int)
$str = "123.45";
$int = (int)$str; // Cast string to integer
echo $int; // Output: 123
?>
PHP automatically converts between data types in certain situations. This is called "type juggling".
<?php
// Adding a string and a number
$result = "10" + 5; // PHP automatically converts string to integer
echo $result; // Output: 15
?>
var_dump() and print_r() are used to display information about variables. var_dump() provides more detailed information, including data type and value.
<?php
$data = ["apple", "banana", "cherry"];
// var_dump: displays type and value
var_dump($data);
// print_r: displays only value in a readable format
print_r($data);
?>
In PHP, strings can be declared using either single or double quotes. Single quotes do not parse variables or escape sequences, while double quotes do.
<!-- Single quotes -->
<?php
$singleQuoteString = 'Hello, $name'; // Variables won't be parsed
echo $singleQuoteString; // Outputs: Hello, $name
?>
<!-- Double quotes -->
<?php
$name = "John";
$doubleQuoteString = "Hello, $name"; // Variables will be parsed
echo $doubleQuoteString; // Outputs: Hello, John
?>
The dot (.) operator is used to concatenate two or more strings together in PHP.
<?php
$firstName = "John";
$lastName = "Doe";
$fullName = $firstName . " " . $lastName; // Concatenates strings
echo $fullName; // Outputs: John Doe
?>
String interpolation allows you to directly include variables inside a string, but it works only with double-quoted strings.
<?php
$greeting = "Hello";
$name = "Alice";
echo "$greeting, $name!"; // Outputs: Hello, Alice!
?>
HeredocNowdoc is similar, but does not parse variables.
<?php
// Heredoc syntax
$name = "Bob";
$heredocString = <<<EOD
Hello, $name!
Welcome to Heredoc.
EOD;
echo $heredocString; // Outputs: Hello, Bob! Welcome to Heredoc.
?>
<!-- Nowdoc syntax -->
$nowdocString = <<<'EOD'
Hello, $name!
Welcome to Nowdoc.
EOD;
echo $nowdocString; // Outputs: Hello, $name! Welcome to Nowdoc.
To include special characters (like quotes) inside a string, use escape sequences (backslashes).
<?php
$escapedString = "He said, \"Hello, World!\""; // Escaping double quotes
echo $escapedString; // Outputs: He said, "Hello, World!"
?>
PHP provides several built-in string functions. strlen() returns the length of a string, and strpos() finds the position of a substring.
<?php
$string = "Hello, World!";
echo strlen($string); // Outputs: 13 (length of the string)
$position = strpos($string, "World"); // Finds the position of "World"
echo $position; // Outputs: 7
?>
PHP provides the mb_* functions to handle multibyte encodings like UTF-8. Functions like mb_strlen() are used to calculate the length of multibyte strings.
<?php
$mbString = "こんにちは"; // Japanese for "Hello"
echo mb_strlen($mbString); // Outputs: 5 (number of characters in the string)
?>
Arithmetic operators are used to perform common mathematical operations.
<!-- Example of Arithmetic Operators -->
<?php
$a = 10;
$b = 5;
echo "Addition: " . ($a + $b); // Addition
echo "<br>";
echo "Subtraction: " . ($a - $b); // Subtraction
echo "<br>";
echo "Multiplication: " . ($a * $b); // Multiplication
echo "<br>";
echo "Division: " . ($a / $b); // Division
echo "<br>";
echo "Modulus: " . ($a % $b); // Modulus (remainder)
?>
Assignment operators are used to assign values to variables.
<!-- Example of Assignment Operators -->
<?php
$a = 10; // Simple assignment
$a += 5; // Adds 5 to $a (equivalent to $a = $a + 5)
echo "Value of a after +=: " . $a; // 15
echo "<br>";
$a -= 3; // Subtracts 3 from $a (equivalent to $a = $a - 3)
echo "Value of a after -=: " . $a; // 12
echo "<br>";
?>
Comparison operators are used to compare two values and return a boolean result.
<!-- Example of Comparison Operators -->
<?php
$a = 10;
$b = 5;
echo "Equal: " . ($a == $b); // Check if equal
echo "<br>";
echo "Identical: " . ($a === $b); // Check if identical (value and type)
echo "<br>";
echo "Not equal: " . ($a != $b); // Check if not equal
echo "<br>";
echo "Greater than: " . ($a > $b); // Check if greater than
echo "<br>";
echo "Less than: " . ($a < $b); // Check if less than
?>
Logical operators are used to perform logical operations on expressions.
<!-- Example of Logical Operators -->
<?php
$a = true;
$b = false;
echo "AND: " . ($a && $b); // AND operation (true if both are true)
echo "<br>";
echo "OR: " . ($a || $b); // OR operation (true if either is true)
echo "<br>";
echo "NOT: " . (!$a); // NOT operation (true if $a is false)
?>
Increment and decrement operators are used to increase or decrease a variable by one.
<!-- Example of Increment and Decrement -->
<?php
$a = 10;
echo "Pre-increment: " . ++$a; // Increment before use
echo "<br>";
echo "Post-increment: " . $a++; // Increment after use
echo "<br>";
echo "Value after post-increment: " . $a; // Value after increment
echo "<br>";
$b = 5;
echo "Pre-decrement: " . --$b; // Decrement before use
echo "<br>";
echo "Post-decrement: " . $b--; // Decrement after use
echo "<br>";
echo "Value after post-decrement: " . $b; // Value after decrement
?>
The ternary operator is a shorthand for if-else statements. The null coalescing operator is used to return the value if it is not null.
<!-- Example of Ternary and Null Coalescing -->
<?php
$a = 10;
$result = ($a > 5) ? "Greater" : "Smaller"; // Ternary operator
echo "Ternary result: " . $result; // "Greater"
echo "<br>";
$b = null;
$value = $b ?? "Default value"; // Null Coalescing Operator
echo "Null Coalescing result: " . $value; // "Default value"
?>
Bitwise operators are used to perform operations on the binary representations of numbers.
<!-- Example of Bitwise Operators -->
<?php
$a = 6; // Binary: 110
$b = 3; // Binary: 011
echo "AND: " . ($a & $b); // Bitwise AND
echo "<br>";
echo "OR: " . ($a | $b); // Bitwise OR
echo "<br>";
echo "XOR: " . ($a ^ $b); // Bitwise XOR
echo "<br>";
echo "NOT: " . ~$a; // Bitwise NOT
?>
The if statement evaluates a condition and runs a block of code if the condition is true.
<?php
$age = 18;
if ($age >= 18) {
echo "You are an adult.";
}
?>
The else statement runs if the if condition is false, and the elseif statement allows for additional conditions.
<?php
$age = 16;
if ($age >= 18) {
echo "You are an adult.";
} elseif ($age >= 13) {
echo "You are a teenager.";
} else {
echo "You are a child.";
}
?>
Conditions can be nested within other conditions for more complex decision-making.
<?php
$age = 25;
$isStudent = true;
if ($age >= 18) {
if ($isStudent) {
echo "You are an adult student.";
} else {
echo "You are an adult.";
}
} else {
echo "You are a minor.";
}
?>
The switch statement is an alternative to multiple if conditions. It compares a variable against multiple values.
<?php
$day = "Monday";
switch ($day) {
case "Monday":
echo "Start of the week!";
break;
case "Friday":
echo "Almost weekend!";
break;
default:
echo "Midweek days.";
}
?>
The match expression, introduced in PHP 8, provides a more powerful alternative to switch.
<?php
$day = "Monday";
match ($day) {
"Monday" => echo "Start of the week!",
"Friday" => echo "Almost weekend!",
default => echo "Midweek days."
};
?>
It's important to keep conditional statements clear, use else if for multiple conditions, and ensure that the conditions are logically ordered.
<?php
$age = 30;
$income = 45000;
// Best practice: Keep conditions readable
if ($age >= 18) {
if ($income > 30000) {
echo "You qualify for the premium service.";
} else {
echo "You qualify for the standard service.";
}
} else {
echo "You do not qualify for any service.";
}
?>
The while loop is used to execute a block of code as long as the specified condition evaluates to true.
<!-- Example of while loop -->
<?php
$i = 1; // Initializing the variable
while ($i <= 5) { // Condition to check
echo $i . "<br>"; // Output the value of $i
$i++; // Increment the value of $i
}
?>
The do...while loop will execute the block of code at least once before checking the condition.
<!-- Example of do...while loop -->
<?php
$i = 1;
do {
echo $i . "<br>"; // Output the value of $i
$i++; // Increment the value of $i
} while ($i <= 5); // Condition to check
?>
The for loop is used when you know beforehand how many times you want to execute a statement or a block of code.
<!-- Example of for loop -->
<?php
for ($i = 1; $i <= 5; $i++) { // Initialize $i, check condition, increment
echo $i . "<br>"; // Output the value of $i
}
?>
The foreach loop is used to iterate over arrays. It is specifically designed for working with arrays in PHP.
<!-- Example of foreach loop -->
<?php
$arr = array(1, 2, 3, 4, 5); // Declare an array
foreach ($arr as $value) { // Iterate over each value in the array
echo $value . "<br>"; // Output each value
}
?>
Both break and continue are used to control the flow of a loop:
break: Exits the loop immediately.continue: Skips the current iteration and moves to the next iteration of the loop.
<!-- Example of break and continue -->
<?php
for ($i = 1; $i <= 10; $i++) {
if ($i == 5) {
break; // Break the loop when $i is 5
}
if ($i == 3) {
continue; // Skip the iteration when $i is 3
}
echo $i . "<br>"; // Output $i
}
?>
A nested loop is a loop inside another loop. The inner loop will be executed one time for each iteration of the outer loop.
<!-- Example of nested loops -->
<?php
for ($i = 1; $i <= 3; $i++) { // Outer loop
for ($j = 1; $j <= 3; $j++) { // Inner loop
echo "($i, $j) "; // Output the values of $i and $j
}
echo "<br>"; // New line after each iteration of outer loop
}
?>
You can use loops to iterate over array elements. The foreach loop is the most common for array iteration, but other loops like for and while can also be used.
<!-- Loop through an associative array using foreach -->
<?php
$person = array("name" => "Alice", "age" => 25, "city" => "New York"); // Associative array
foreach ($person as $key => $value) { // Iterate through key-value pairs
echo $key . ": " . $value . "<br>"; // Output each key-value pair
}
?>
Indexed arrays are arrays that use numerical indexes starting from 0.
<?php
// Declare an indexed array
$fruits = ["apple", "banana", "cherry"];
// Accessing array elements using indexes
echo $fruits[0]; // Output: apple
?>
Associative arrays are arrays where each element is assigned a key, which can be a string or an integer.
<?php
// Declare an associative array
$person = [
"name" => "John",
"age" => 25,
"city" => "New York"
];
// Accessing array elements using keys
echo $person["name"]; // Output: John
?>
Multidimensional arrays are arrays that contain other arrays as elements. These can be two-dimensional (like matrices) or more.
<?php
// Declare a multidimensional array
$students = [
["name" => "Alice", "age" => 22, "grade" => "A"],
["name" => "Bob", "age" => 23, "grade" => "B"],
["name" => "Charlie", "age" => 24, "grade" => "C"]
];
// Accessing elements of the multidimensional array
echo $students[0]["name"]; // Output: Alice
?>
Arrays can be declared using the array() function or shorthand syntax. Array elements can be accessed using their indexes or keys.
<?php
// Array declaration using the array() function
$colors = array("red", "green", "blue");
// Accessing array elements
echo $colors[1]; // Output: green
?>
Arrays can be modified by adding, updating, or removing elements.
<?php
// Declare an indexed array
$fruits = ["apple", "banana", "cherry"];
// Adding an element to the array
$fruits[] = "orange";
// Updating an element in the array
$fruits[1] = "grape";
// Removing an element from the array
unset($fruits[0]);
// Display the modified array
print_r($fruits); // Output: Array ( [0] => grape [1] => cherry [2] => orange )
?>
Arrays can be iterated using loops like foreach, for, or while.
<?php
// Declare an indexed array
$fruits = ["apple", "banana", "cherry"];
// Iterating with foreach loop
foreach ($fruits as $fruit) {
echo $fruit . " "; // Output: apple banana cherry
}
?>
PHP 7.1 introduced array destructuring, allowing you to extract elements from arrays directly into variables.
<?php
// Declare an indexed array
$person = ["John", 25, "New York"];
// Destructuring the array into variables
list($name, $age, $city) = $person;
echo $name . " is " . $age . " years old and lives in " . $city . ".";
// Output: John is 25 years old and lives in New York.
?>
count() returns the number of elements in an array. array_push() adds one or more elements to the end of an array. array_pop() removes the last element of an array.
<?php
// count() function
$fruits = ["apple", "banana", "cherry"];
echo count($fruits); // Outputs: 3
// array_push() function
array_push($fruits, "orange"); // Adds "orange" to the array
print_r($fruits); // Outputs: Array ( [0] => apple [1] => banana [2] => cherry [3] => orange )
// array_pop() function
array_pop($fruits); // Removes "orange" from the array
print_r($fruits); // Outputs: Array ( [0] => apple [1] => banana [2] => cherry )
?>
array_merge() merges one or more arrays into a single array. array_combine() creates an array by using one array for keys and another for values.
<?php
// array_merge() function
$array1 = ["apple", "banana"];
$array2 = ["cherry", "date"];
$mergedArray = array_merge($array1, $array2); // Merges both arrays
print_r($mergedArray); // Outputs: Array ( [0] => apple [1] => banana [2] => cherry [3] => date )
// array_combine() function
$keys = ["name", "age"];
$values = ["John", 30];
$combinedArray = array_combine($keys, $values); // Combines keys and values into an associative array
print_r($combinedArray); // Outputs: Array ( [name] => John [age] => 30 )
?>
array_slice() extracts a portion of an array without affecting the original array. array_splice() removes and optionally replaces elements of an array.
<?php
// array_slice() function
$array = [1, 2, 3, 4, 5];
$slice = array_slice($array, 1, 3); // Extracts elements starting from index 1, length 3
print_r($slice); // Outputs: Array ( [0] => 2 [1] => 3 [2] => 4 )
// array_splice() function
array_splice($array, 1, 2, ["a", "b"]); // Replaces 2 elements starting from index 1 with "a" and "b"
print_r($array); // Outputs: Array ( [0] => 1 [1] => a [2] => b [3] => 4 [4] => 5 )
?>
in_array() checks if a value exists in an array, and array_search() returns the key of the first occurrence of a value in an array.
<?php
// in_array() function
$numbers = [1, 2, 3, 4, 5];
echo in_array(3, $numbers) ? "Found" : "Not Found"; // Outputs: Found
// array_search() function
$key = array_search(4, $numbers); // Finds the index of value 4
echo $key; // Outputs: 3
?>
PHP provides a variety of sorting functions. For example, sort() sorts an array in ascending order, and rsort() sorts it in descending order.
<?php
$numbers = [5, 3, 8, 1, 2];
sort($numbers); // Sorts the array in ascending order
print_r($numbers); // Outputs: Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 5 [4] => 8 )
rsort($numbers); // Sorts the array in descending order
print_r($numbers); // Outputs: Array ( [0] => 8 [1] => 5 [2] => 3 [3] => 2 [4] => 1 )
?>
array_filter() filters an array using a callback function, and array_map() applies a callback function to the elements of an array.
<?php
// array_filter() function
$numbers = [1, 2, 3, 4, 5];
$evenNumbers = array_filter($numbers, function($num) {
return $num % 2 == 0;
});
print_r($evenNumbers); // Outputs: Array ( [1] => 2 [3] => 4 )
// array_map() function
$squaredNumbers = array_map(function($num) {
return $num * $num;
}, $numbers);
print_r($squaredNumbers); // Outputs: Array ( [0] => 1 [1] => 4 [2] => 9 [3] => 16 [4] => 25 )
?>
array_keys() returns all the keys of an array, and array_values() returns all the values.
<?php
$array = ["a" => "apple", "b" => "banana", "c" => "cherry"];
// array_keys() function
print_r(array_keys($array)); // Outputs: Array ( [0] => a [1] => b [2] => c )
// array_values() function
print_r(array_values($array)); // Outputs: Array ( [0] => apple [1] => banana [2] => cherry )
?>
Functions are declared using the function keyword, followed by the function name and a pair of parentheses for parameters.
<!-- Example of Declaring a Function -->
<?php
function greet() {
echo "Hello, World!";
}
greet(); // Call the function
?>
Functions can accept parameters, which are variables that hold values passed to the function. These values are known as arguments.
<!-- Example of Parameters and Arguments -->
<?php
function greet($name) {
echo "Hello, " . $name . "!";
}
greet("Alice"); // Pass the argument "Alice"
?>
Functions can return values using the return keyword. The returned value can be used in other parts of the code.
<!-- Example of Return Values -->
<?php
function add($a, $b) {
return $a + $b;
}
$result = add(3, 4); // Store the returned value in a variable
echo "The sum is: " . $result;
?>
Functions can have default parameter values. If the caller does not pass an argument for that parameter, the default value is used.
<!-- Example of Default Parameters -->
<?php
function greet($name = "Guest") {
echo "Hello, " . $name . "!";
}
greet(); // No argument, so the default is used
echo "<br>";
greet("Bob"); // Argument passed, default is ignored
?>
PHP allows functions to accept an arbitrary number of arguments using the ... syntax. These arguments are passed as an array.
<!-- Example of Variable-length Arguments -->
<?php
function sum(...$numbers) {
return array_sum($numbers);
}
echo "The sum is: " . sum(1, 2, 3, 4, 5); // Pass a variable number of arguments
?>
Anonymous functions (also called closures) are functions that do not have a name. They are often used as arguments to other functions.
<!-- Example of Anonymous Functions -->
<?php
$greet = function($name) {
echo "Hello, " . $name . "!";
};
$greet("Charlie"); // Call the anonymous function
?>
Arrow functions, introduced in PHP 7.4, provide a shorter syntax for anonymous functions. They automatically capture variables from the surrounding scope.
<!-- Example of Arrow Functions -->
<?php
$multiply = fn($a, $b) => $a * $b; // Short syntax for anonymous function
echo "The product is: " . $multiply(3, 4);
?>
The $_GET superglobal is used to collect form data after submitting an HTML form with method="get". It is also used to pass variables through URL parameters.
<!-- Example using $_GET -->
<?php
// Retrieve the value passed via the URL
$name = $_GET['name']; // The 'name' parameter from the URL
echo "Hello, " . $name; // Output the value of the 'name' parameter
?>
example.com?name=John, the output will be:The $_POST superglobal is used to collect form data after submitting a form with method="post". It is more secure than $_GET as the data is not visible in the URL.
<!-- Example using $_POST -->
<form method="post">
Name: <input type="text" name="name"><br>
<input type="submit" value="Submit">
</form>
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$name = $_POST['name']; // Collect form data from the 'name' input
echo "Hello, " . $name; // Output the value of 'name'
}
?>
The $_REQUEST superglobal collects data from both $_GET and $_POST. It is a general-purpose variable for fetching user input.
<!-- Example using $_REQUEST -->
<form method="post">
Name: <input type="text" name="name"><br>
<input type="submit" value="Submit">
</form>
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$name = $_REQUEST['name']; // Collect data from POST request
echo "Hello, " . $name; // Output the value of 'name'
}
?>
The $_SERVER superglobal contains information about the server environment and the current request, such as the current script name, headers, and more.
<!-- Example using $_SERVER -->
<?php
echo $_SERVER['SERVER_NAME']; // Displays the server's host name
echo $_SERVER['REQUEST_METHOD']; // Displays the request method (GET or POST)
?>
The $_SESSION superglobal is used to store session variables. $_COOKIE is used to store small pieces of data in the client's browser.
<!-- Example using $_SESSION -->
<?php
session_start(); // Start a session
$_SESSION['username'] = 'JohnDoe'; // Store session data
echo $_SESSION['username']; // Retrieve session data
?>
<!-- Example using $_COOKIE -->
<?php
// Set a cookie (expires in 1 hour)
setcookie('user', 'Alice', time() + 3600);
// Retrieve the cookie
if(isset($_COOKIE['user'])) {
echo "Hello, " . $_COOKIE['user'];
}
?>
The $_FILES superglobal is used to upload files via a form. It contains information about the file uploaded.
<!-- Example using $_FILES -->
<form method="post" enctype="multipart/form-data">
Choose a file to upload: <input type="file" name="file"><br>
<input type="submit" value="Upload">
</form>
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
if (isset($_FILES['file'])) {
echo "File name: " . $_FILES['file']['name']; // Get file name
}
}
?>
$_ENV contains environment variables, and $_GLOBALS contains all global variables, including those from the current script.
<!-- Example using $_ENV -->
<?php
// Retrieve an environment variable (if set)
echo getenv('PATH'); // Output system PATH variable
?>
<!-- Example using $_GLOBALS -->
<?php
$x = 10; // Global variable
echo $GLOBALS['x']; // Access global variable using $_GLOBALS
?>
HTML forms allow users to input data that can be sent to the server for processing. Here’s an example of a basic form:
<!-- HTML form to submit user data -->
<form action="process.php" method="POST">
<label for="name">Name:</label>
<input type="text" id="name" name="name" required><br>
<label for="email">Email:</label>
<input type="email" id="email" name="email" required><br>
<input type="submit" value="Submit">
</form>
Once the form is submitted, the data can be accessed using the $_POST superglobal array in PHP:
<!-- PHP script to receive data via $_POST -->
<?php
// Access form data sent via POST
$name = $_POST['name'];
$email = $_POST['email'];
echo "Name: " . $name . "<br>";
echo "Email: " . $email;
?>
To prevent security risks such as XSS (Cross-Site Scripting), it’s important to sanitize user input using htmlspecialchars():
<!-- PHP script to sanitize user input -->
<?php
// Sanitize user input to prevent XSS attacks
$name = htmlspecialchars($_POST['name']);
$email = htmlspecialchars($_POST['email']);
echo "Name: " . $name . "<br>";
echo "Email: " . $email;
?>
Form validation ensures that the data submitted is correct. Basic validation checks can be done before sending data to the server:
<!-- PHP script for form validation -->
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
// Check if name and email are empty
if (empty($_POST["name"]) || empty($_POST["email"])) {
echo "Both fields are required!";
} else {
echo "Form is valid";
}
}
?>
The filter_input() function can be used to filter and validate user input, improving security:
<!-- PHP script using filter_input() to validate email -->
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
// Validate email using filter_input()
$email = filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL);
if ($email) {
echo "Valid email: " . $email;
} else {
echo "Invalid email format!";
}
}
?>
Required fields can be easily enforced in both HTML and PHP. Here’s an example:
<!-- HTML form with required attribute -->
<form action="process.php" method="POST">
<label for="name">Name:</label>
<input type="text" id="name" name="name" required><br>
<label for="email">Email:</label>
<input type="email" id="email" name="email" required><br>
<input type="submit" value="Submit">
</form>
It’s important to display errors when validation fails. Here’s an example of error display:
<!-- PHP script to display validation errors -->
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (empty($_POST["name"]) || empty($_POST["email"])) {
echo "Both fields are required!<br>";
} else {
echo "Form is valid!<br>";
}
}
?>
The fopen() function is used to open a file. It takes two parameters: the file name and the mode (e.g., read, write).
<!-- Open a file in read mode -->
<?php
// Open the file for reading
$file = fopen("example.txt", "r"); // 'r' is for read mode
if ($file) {
echo "File opened successfully!";
} else {
echo "Unable to open file.";
}
fclose($file); // Always close the file
?>
You can read files using the fread() or fgets() functions. fread() reads the entire file, while fgets() reads one line at a time.
<!-- Reading a file with fread() -->
<?php
$file = fopen("example.txt", "r");
if ($file) {
// Read the entire file
$content = fread($file, filesize("example.txt"));
echo $content;
fclose($file);
}
?>
<!-- Reading a file line by line with fgets() -->
<?php
$file = fopen("example.txt", "r");
if ($file) {
while (($line = fgets($file)) !== false) {
echo $line . "<br>";
}
fclose($file);
}
?>
The fwrite() function is used to write data to a file. If the file does not exist, it will be created (if the mode allows it).
<!-- Writing to a file -->
<?php
$file = fopen("example.txt", "w"); // 'w' mode for writing
if ($file) {
fwrite($file, "This is some text written to the file.");
fclose($file);
echo "Data written successfully!";
} else {
echo "Unable to open file for writing.";
}
?>
To handle file uploads in PHP, you need to use the $_FILES superglobal array. Below is an example of uploading a file via an HTML form.
<!-- HTML Form for file upload -->
<form action="upload.php" method="post" enctype="multipart/form-data">
Select file to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload File" name="submit">
</form>
PHP Script to handle file upload:
<!-- PHP file upload script -->
<?php
if (isset($_FILES['fileToUpload'])) {
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
echo "The file ". htmlspecialchars( basename( $_FILES["fileToUpload"]["name"])). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
?>
The unlink() function is used to delete a file.
<!-- Delete a file -->
<?php
if (unlink("example.txt")) {
echo "File deleted successfully!";
} else {
echo "Error deleting file.";
}
?>
The file_exists() function checks if a file or directory exists. The is_file() function checks if the path is a file.
<!-- Check if a file exists -->
<?php
if (file_exists("example.txt")) {
echo "File exists!";
} else {
echo "File does not exist.";
}
?>
<!-- Check if path is a file -->
<?php
if (is_file("example.txt")) {
echo "It is a file!";
} else {
echo "It is not a file.";
}
?>
PHP allows you to check and change file permissions using functions like chmod() and fileperms().
<!-- Changing file permissions -->
<?php
chmod("example.txt", 0755); // Set file permissions to rwxr-xr-x
echo "Permissions changed successfully!";
?>
In PHP, sessions are started using the session_start() function. This function must be called at the very beginning of your script, before any HTML output.
<!-- Start a session at the beginning of the PHP script -->
<?php
// Start the session
session_start();
?>
After starting a session, you can store data in the $_SESSION superglobal array. To retrieve the data, you simply access the array by the key.
<!-- Store and retrieve session variables -->
<?php
session_start(); // Start the session
// Store a value in the session
$_SESSION["username"] = "JohnDoe";
// Retrieve and display the session value
echo "Hello, " . $_SESSION["username"];
?>
To destroy a session, use session_destroy(). However, to fully remove all session variables, you should also unset them using unset().
<!-- Destroy a session and remove session variables -->
<?php
session_start(); // Start the session
// Unset all session variables
session_unset();
// Destroy the session
session_destroy();
echo "Session destroyed.";
?>
Cookies are small pieces of data stored in the user's browser. You can set cookies using the setcookie() function, and you can access their values using the $_COOKIE superglobal.
<!-- Create and read cookies in PHP -->
<?php
// Set a cookie that expires in 1 hour
setcookie("user", "JaneDoe", time() + 3600, "/");
// Check if the cookie exists and display it
if(isset($_COOKIE["user"])) {
echo "Welcome back, " . $_COOKIE["user"];
} else {
echo "Cookie not set.";
}
?>
When setting cookies, you can specify an expiration time. The time is set in Unix timestamp format (seconds since January 1, 1970). To make a cookie expire after a certain period, you adjust this time.
<!-- Set a cookie that expires in 30 days -->
<?php
// Set cookie to expire in 30 days
setcookie("userPreference", "darkMode", time() + (30 * 24 * 60 * 60), "/"); // 30 days
echo "Cookie set for 30 days.";
?>
To delete a cookie, you must set its expiration date to a time in the past.
<!-- Delete a cookie by setting its expiration time to the past -->
<?php
// Delete the "user" cookie by setting its expiration time in the past
setcookie("user", "", time() - 3600, "/");
echo "Cookie deleted.";
?>
To enhance security, use secure and HttpOnly flags when working with cookies. Also, always use session_regenerate_id() to avoid session fixation attacks.
<!-- Secure session practice example -->
<?php
session_start(); // Start the session
// Regenerate session ID to prevent session fixation
session_regenerate_id(true);
// Set secure cookie with HttpOnly and Secure flags
setcookie("secureCookie", "secureValue", time() + 3600, "/", "", true, true); // Secure and HttpOnly
echo "Secure session practices applied.";
?>
A class in PHP is a blueprint for creating objects. It defines the properties and methods that the objects created from the class will have.
<!-- Define a simple class -->
<?php
class Car {
// Property of the class
public $make;
public $model;
// Constructor to initialize properties
public function __construct($make, $model) {
$this->make = $make;
$this->model = $model;
}
// Method of the class
public function displayInfo() {
return "Make: " . $this->make . ", Model: " . $this->model;
}
}
?>
Objects are instances of a class. You can create an object using the new keyword, which calls the constructor method of the class.
<!-- Create an object from the Car class -->
<?php
// Create an object of the Car class
$car1 = new Car("Toyota", "Corolla");
// Accessing method to display info
echo $car1->displayInfo();
?>
Constructors are special methods that run automatically when an object is created. They are used to initialize the object's properties. Destructors are called when an object is destroyed, typically when the script ends or the object goes out of scope.
<!-- Class with constructor and destructor -->
<?php
class Book {
public $title;
// Constructor to initialize title
public function __construct($title) {
$this->title = $title;
echo "Book '$title' created.
";
}
// Destructor to indicate object destruction
public function __destruct() {
echo "Book '$this->title' is being destroyed.
";
}
}
// Create Book object
$book1 = new Book("PHP for Beginners");
?>
Properties are variables that belong to a class, and methods are functions that belong to a class. These define the characteristics and behaviors of objects created from the class.
<!-- Class with properties and methods -->
<?php
class Animal {
// Property
public $name;
// Constructor
public function __construct($name) {
$this->name = $name;
}
// Method
public function speak() {
echo $this->name . " makes a sound.
";
}
}
// Create an object
$dog = new Animal("Dog");
$dog->speak(); // Calling the method
?>
The $this keyword refers to the current object in a class. It is used to access the object's properties and methods.
<!-- Using $this keyword -->
<?php
class Person {
public $name;
public function __construct($name) {
$this->name = $name;
}
// Method using $this to access the property
public function greet() {
echo "Hello, " . $this->name . "!";
}
}
// Create object and call method
$person1 = new Person("John");
$person1->greet();
?>
In PHP, properties and methods can have different visibility levels:
<!-- Example with visibility levels -->
<?php
class Employee {
// Public property
public $name;
// Private property
private $salary;
// Protected property
protected $position;
// Constructor
public function __construct($name, $salary, $position) {
$this->name = $name;
$this->salary = $salary;
$this->position = $position;
}
// Method to display public property
public function displayInfo() {
echo "Employee: " . $this->name . "
";
}
// Method to access private property
public function getSalary() {
return $this->salary;
}
}
// Create object
$emp = new Employee("Alice", 50000, "Developer");
$emp->displayInfo(); // Accessing public method
echo "Salary: " . $emp->getSalary();
?>
Inheritance allows a class to inherit methods and properties from another class.
<?php
class Animal {
public $name;
public function __construct($name) {
$this->name = $name;
}
public function speak() {
return $this->name . " makes a sound";
}
}
class Dog extends Animal {
public function speak() {
return $this->name . " barks";
}
}
$dog = new Dog("Buddy");
echo $dog->speak(); // Output: Buddy barks
?>
Method overriding allows a subclass to provide its own implementation of a method defined in its parent class.
<?php
class Vehicle {
public function start() {
return "Vehicle started";
}
}
class Car extends Vehicle {
// Overriding the start method
public function start() {
return "Car started";
}
}
$car = new Car();
echo $car->start(); // Output: Car started
?>
Abstract classes cannot be instantiated directly and are used to define methods that must be implemented by subclasses.
<?php
abstract class Shape {
abstract public function area(); // Abstract method
}
class Circle extends Shape {
public $radius;
public function __construct($radius) {
$this->radius = $radius;
}
public function area() {
return pi() * pow($this->radius, 2);
}
}
$circle = new Circle(5);
echo $circle->area(); // Output: 78.539816339744
?>
Interfaces define methods that a class must implement but cannot provide the implementation.
<?php
interface Payable {
public function pay($amount);
}
class Employee implements Payable {
public function pay($amount) {
return "Paid $" . $amount;
}
}
$employee = new Employee();
echo $employee->pay(100); // Output: Paid $100
?>
Traits are a way to reuse code in multiple classes without inheritance. They help avoid issues with multiple inheritance.
<?php
trait Logger {
public function log($message) {
return "Log: " . $message;
}
}
class Application {
use Logger; // Using the trait
}
$app = new Application();
echo $app->log("System started"); // Output: Log: System started
?>
Namespaces are used to organize code into logical groups and avoid name collisions in larger applications.
<?php
namespace Vehicles;
class Car {
public function drive() {
return "Car is driving";
}
}
namespace Animals;
class Dog {
public function bark() {
return "Dog barks";
}
}
$car = new \Vehicles\Car();
echo $car->drive(); // Output: Car is driving
?>
Autoloading allows PHP to automatically include classes when they are needed, avoiding the need for explicit include or require statements.
<?php
spl_autoload_register(function ($class_name) {
include $class_name . '.class.php';
});
// Assuming the class "Car" is defined in "Car.class.php"
$car = new Car();
$car->drive(); // Output: Car is driving
?>
In PHP, errors can be categorized into four types:
PHP provides a try-catch-finally block to handle exceptions:
<!-- Example using try, catch, and finally -->
<?php
try {
// Code that might throw an exception
$num = 5;
if ($num > 0) {
throw new Exception("This is an exception");
}
} catch (Exception $e) {
// Exception handling code
echo "Caught exception: " . $e->getMessage();
} finally {
// Code that runs regardless of an exception
echo "<br>Finally block executed.";
}
?>
In PHP, exceptions can be thrown using the throw keyword. An exception is an object that inherits from the Exception class.
<!-- Example of throwing an exception -->
<?php
function checkNumber($num) {
if ($num > 0) {
throw new Exception("Number must be negative.");
}
return $num;
}
try {
checkNumber(1);
} catch (Exception $e) {
echo "Caught exception: " . $e->getMessage();
}
?>
You can create custom exception classes by extending the built-in Exception class. This allows for specialized exception handling.
<!-- Example of custom exception class -->
<?php
class CustomException extends Exception {
public function errorMessage() {
return "Custom error: " . $this->getMessage();
}
}
try {
throw new CustomException("This is a custom exception.");
} catch (CustomException $e) {
echo $e->errorMessage();
}
?>
The error_reporting() function sets the level of error reporting in PHP. You can choose which types of errors to report by using predefined constants.
<!-- Example of using error_reporting() -->
<?php
// Report all errors except notices
error_reporting(E_ALL & ~E_NOTICE);
// Example of notice that won't be shown
$var;
?>
PHP provides error logging functionality, which can be enabled using ini_set() and error_log(). Logs can be written to a file or sent via email.
<!-- Example of error logging -->
<?php
ini_set("log_errors", 1); // Enable error logging
ini_set("error_log", "/path/to/php-error.log"); // Set log file
// Generate an error
trigger_error("This is a custom error message.", E_USER_NOTICE);
?>
The first step in working with a MySQL database in PHP is to establish a connection using the MySQLi extension.
<!-- PHP code to connect to the database -->
<?php
// Create connection
$conn = new mysqli("localhost", "username", "password", "database_name");
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";
?>
Once connected to the database, you can create tables using SQL commands.
<!-- PHP code to create a table -->
<?php
// SQL query to create a table
$sql = "CREATE TABLE Users (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
firstname VARCHAR(30) NOT NULL,
lastname VARCHAR(30) NOT NULL,
email VARCHAR(50),
reg_date TIMESTAMP
)";
if ($conn->query($sql) === TRUE) {
echo "Table Users created successfully";
} else {
echo "Error creating table: " . $conn->error;
}
?>
You can insert data into a table using SQL INSERT INTO queries.
<!-- PHP code to insert data into the table -->
<?php
$sql = "INSERT INTO Users (firstname, lastname, email)
VALUES ('John', 'Doe', 'john.doe@example.com')";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "
" . $conn->error;
}
?>
Data can be retrieved from the database using SELECT queries.
<!-- PHP code to select data from the table -->
<?php
$sql = "SELECT id, firstname, lastname FROM Users";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// Output data of each row
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "
";
}
} else {
echo "0 results";
}
?>
You can update or delete data from the table using UPDATE and DELETE SQL commands.
<!-- PHP code to update a record -->
<?php
$sql = "UPDATE Users SET email='newemail@example.com' WHERE id=1";
if ($conn->query($sql) === TRUE) {
echo "Record updated successfully";
} else {
echo "Error updating record: " . $conn->error;
}
?>
<!-- PHP code to delete a record -->
<?php
$sql = "DELETE FROM Users WHERE id=1";
if ($conn->query($sql) === TRUE) {
echo "Record deleted successfully";
} else {
echo "Error deleting record: " . $conn->error;
}
?>
The mysqli_fetch_assoc() function fetches a result row as an associative array.
<!-- PHP code using mysqli_fetch_assoc() -->
<?php
$sql = "SELECT id, firstname, lastname FROM Users";
$result = $conn->query($sql);
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "
";
}
?>
After performing all database operations, it's essential to close the database connection.
<!-- PHP code to close the connection -->
<?php
$conn->close();
?>
PDO (PHP Data Objects) is a database access layer providing a uniform method of access to multiple databases. It does not provide database abstraction but allows for a uniform and secure way of interacting with databases.
To connect to a database using PDO, use the new PDO() constructor. The connection string format is "mysql:host=localhost;dbname=test" for MySQL.
<?php
try {
// Connect to MySQL database
$pdo = new PDO('mysql:host=localhost;dbname=test', 'root', 'password');
// Set PDO error mode to exception
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
echo "Connected successfully!";
} catch (PDOException $e) {
echo "Connection failed: " . $e->getMessage();
}
?>
Prepared statements are used to execute SQL queries securely and efficiently. They help prevent SQL injection by separating SQL logic from data.
<?php
// Prepare a query to insert data
$stmt = $pdo->prepare("INSERT INTO users (name, email) VALUES (:name, :email)");
// Bind parameters
$stmt->bindParam(':name', $name);
$stmt->bindParam(':email', $email);
// Assign values to the parameters
$name = 'John Doe';
$email = 'johndoe@example.com';
// Execute the statement
$stmt->execute();
echo "Record inserted successfully!";
?>
In PDO, parameters can be bound to placeholders in the SQL query. You can bind parameters by name or position.
<?php
// Prepare a query to select data
$stmt = $pdo->prepare("SELECT * FROM users WHERE email = :email");
// Bind the parameter
$stmt->bindParam(':email', $email);
// Assign value to parameter
$email = 'johndoe@example.com';
// Execute the query
$stmt->execute();
// Fetch the results
$result = $stmt->fetch(PDO::FETCH_ASSOC);
print_r($result);
?>
PDO supports various fetch methods to retrieve results from a query. Common methods include fetch() and fetchAll().
<?php
// Fetch all records from the users table
$stmt = $pdo->query("SELECT * FROM users");
// Fetch all results as an associative array
$results = $stmt->fetchAll(PDO::FETCH_ASSOC);
// Display the results
foreach ($results as $row) {
echo $row['name'] . " - " . $row['email'] . "<br>";
}
?>
Error handling in PDO is typically done using exceptions. The setAttribute() method is used to set the error mode to throw exceptions on error.
<?php
try {
// Intentional error: incorrect table name
$stmt = $pdo->query("SELECT * FROM non_existent_table");
} catch (PDOException $e) {
echo "Error: " . $e->getMessage();
}
?>
PDO supports database transactions, allowing you to execute multiple queries as a single unit. This ensures data consistency. Use beginTransaction(), commit(), and rollBack().
<?php
try {
// Begin transaction
$pdo->beginTransaction();
// Insert a record
$stmt = $pdo->prepare("INSERT INTO users (name, email) VALUES (:name, :email)");
$stmt->execute([':name' => 'Mark', ':email' => 'mark@example.com']);
// Simulate a second insert
$stmt = $pdo->prepare("INSERT INTO users (name, email) VALUES (:name, :email)");
$stmt->execute([':name' => 'Anna', ':email' => 'anna@example.com']);
// Commit the transaction
$pdo->commit();
echo "Transaction successful!";
} catch (PDOException $e) {
// Rollback if error occurs
$pdo->rollBack();
echo "Error: " . $e->getMessage();
}
?>
An API (Application Programming Interface) is a set of rules that allows different software applications to communicate with each other. It defines methods and data structures for requesting and exchanging information between systems.
In PHP, we use json_encode() to convert PHP data into JSON format and json_decode() to convert JSON back to PHP data.
<?php
// PHP array
$data = array("name" => "John", "age" => 30);
// Convert array to JSON format
$jsonData = json_encode($data);
echo $jsonData; // {"name":"John","age":30}
// Convert JSON back to PHP array
$decodedData = json_decode($jsonData, true);
print_r($decodedData); // Array ( [name] => John [age] => 30 )
?>
The file_get_contents() function in PHP allows you to read the contents of a file or URL into a string. It's often used to fetch data from APIs.
<?php
// Fetch data from an API
$jsonData = file_get_contents("https://api.example.com/data");
// Decode the JSON response
$data = json_decode($jsonData, true);
// Output the data
print_r($data);
?>
cURL is a library in PHP that allows you to make HTTP requests. It's more powerful and flexible than file_get_contents() and is commonly used for interacting with APIs.
<?php
// Initialize cURL session
$ch = curl_init();
// Set cURL options
curl_setopt($ch, CURLOPT_URL, "https://api.example.com/data");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// Execute cURL request and get the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Decode JSON response
$data = json_decode($response, true);
// Output the data
print_r($data);
?>
You can send data (such as JSON) to an API using cURL by setting appropriate cURL options, such as CURLOPT_POST for POST requests.
<?php
// Initialize cURL session
$ch = curl_init();
// Set cURL options for sending data
curl_setopt($ch, CURLOPT_URL, "https://api.example.com/submit");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(["name" => "John", "age" => 30]));
// Set the Content-Type header to application/json
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/json"));
// Execute cURL request and get the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Output the response
echo $response;
?>
REST APIs allow you to interact with web services using standard HTTP methods like GET, POST, PUT, and DELETE. You can consume REST APIs by sending HTTP requests to the server and processing the responses.
<?php
// Initialize cURL session
$ch = curl_init();
// Set cURL options for a GET request
curl_setopt($ch, CURLOPT_URL, "https://api.example.com/records");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// Execute cURL request and get the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Decode the JSON response
$data = json_decode($response, true);
// Output the data
print_r($data);
?>
You can create your own API endpoint by writing a PHP script that handles HTTP requests and returns a response in JSON format.
<?php
header('Content-Type: application/json');
// Sample data
$data = array("status" => "success", "message" => "API is working!");
// Encode data as JSON and send response
echo json_encode($data);
?>
This is the form used to upload files. It uses the enctype="multipart/form-data" attribute to specify that the form can send files.
<!-- HTML Form to upload a file -->
<form action="upload.php" method="post" enctype="multipart/form-data">
<label for="file">Choose file to upload:
Handling $_FILES
The $_FILES array is used to access the uploaded files in PHP. Each element of the array holds information about the uploaded file, such as its name, type, temporary location, and size.
<!-- PHP script to handle file upload -->
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (isset($_FILES["file"])) {
$fileName = $_FILES["file"]["name"]; // Get file name
$fileTmpName = $_FILES["file"]["tmp_name"]; // Get temp name
echo "File Name: " . $fileName . "<br>"; // Display file name
}
}
?>
File Name: example.jpg
Moving Uploaded Files
Once a file is uploaded, it is stored in a temporary location. You can move it to a permanent location using move_uploaded_file().
<!-- PHP script to move uploaded file -->
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (isset($_FILES["file"])) {
$fileTmpName = $_FILES["file"]["tmp_name"];
$fileName = $_FILES["file"]["name"];
$uploadDirectory = "uploads/"; // Directory to move file
if (move_uploaded_file($fileTmpName, $uploadDirectory . $fileName)) {
echo "File has been uploaded successfully!<br>";
} else {
echo "Error uploading file.<br>";
}
}
}
?>
File has been uploaded successfully!
File Size Validation
File size can be validated using the $_FILES array's size property. It's a good idea to limit the maximum allowed file size to avoid uploading very large files.
<!-- PHP script to validate file size -->
<?php
$maxSize = 2000000; // Maximum file size (2MB)
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (isset($_FILES["file"])) {
$fileSize = $_FILES["file"]["size"];
if ($fileSize > $maxSize) {
echo "File is too large. Maximum allowed size is 2MB.<br>";
} else {
echo "File size is acceptable.<br>";
}
}
}
?>
File size is acceptable.
Allowed File Types
You can restrict the types of files that can be uploaded by checking the $_FILES array's type property. For example, you may only allow image files.
<!-- PHP script to check allowed file types -->
<?php
$allowedTypes = ["image/jpeg", "image/png", "image/gif"];
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (isset($_FILES["file"])) {
$fileType = $_FILES["file"]["type"];
if (in_array($fileType, $allowedTypes)) {
echo "File type is allowed.<br>";
} else {
echo "Invalid file type. Only JPG, PNG, and GIF are allowed.<br>";
}
}
}
?>
File type is allowed.
Display Uploaded Files
Once files are uploaded, you can display them on the page using HTML and PHP.
<!-- PHP script to display uploaded image -->
<?php
$uploadDirectory = "uploads/";
$fileName = "example.jpg"; // Assume file was uploaded
if (file_exists($uploadDirectory . $fileName)) {
echo "<img src='" . $uploadDirectory . $fileName . "' alt='Uploaded File' /><br>";
}
?>
<img src="uploads/example.jpg" alt="Uploaded File" />
Securing File Uploads
It's important to secure file uploads to avoid security risks. Always validate the file type, size, and use proper file names to prevent overwriting files or executing malicious code.
<!-- PHP script to secure file upload -->
<?php
$allowedTypes = ["image/jpeg", "image/png", "image/gif"];
$maxSize = 2000000; // Max size 2MB
$uploadDirectory = "uploads/";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (isset($_FILES["file"])) {
$fileTmpName = $_FILES["file"]["tmp_name"];
$fileName = $_FILES["file"]["name"];
$fileType = $_FILES["file"]["type"];
$fileSize = $_FILES["file"]["size"];
// Check if the file type is allowed
if (!in_array($fileType, $allowedTypes)) {
echo "Invalid file type.<br>";
}
// Check file size
elseif ($fileSize > $maxSize) {
echo "File is too large.<br>";
}
// Generate a safe unique file name
else {
$safeFileName = uniqid("upload_", true) . "." . pathinfo($fileName, PATHINFO_EXTENSION);
if (move_uploaded_file($fileTmpName, $uploadDirectory . $safeFileName)) {
echo "File uploaded successfully!<br>";
} else {
echo "Error uploading file.<br>";
}
}
}
}
?>
File uploaded successfully!
The mail() function in PHP is used to send simple emails.
<?php
// Define recipient, subject, and message
$to = "recipient@example.com";
$subject = "Test Email";
$message = "Hello, this is a test email!";
// Send email
if(mail($to, $subject, $message)) {
echo "Email sent successfully!";
} else {
echo "Email sending failed!";
}
?>
Headers are used to specify the sender, content type, and other details for an email.
<?php
// Define recipient, subject, and message
$to = "recipient@example.com";
$subject = "Test Email with Headers";
$message = "This is a test email with headers!";
// Define headers
$headers = "From: sender@example.com" . "\r\n";
$headers .= "Reply-To: sender@example.com" . "\r\n";
$headers .= "Content-Type: text/plain; charset=UTF-8" . "\r\n";
// Send email with headers
if(mail($to, $subject, $message, $headers)) {
echo "Email with headers sent successfully!";
} else {
echo "Email with headers sending failed!";
}
?>
To send an HTML email, you need to set the content type to text/html in the headers.
<?php
// Define recipient, subject, and HTML message
$to = "recipient@example.com";
$subject = "Test HTML Email";
$message = "Hello!
This is a test HTML email.
";
// Define headers for HTML email
$headers = "From: sender@example.com" . "\r\n";
$headers .= "Reply-To: sender@example.com" . "\r\n";
$headers .= "Content-Type: text/html; charset=UTF-8" . "\r\n";
// Send HTML email
if(mail($to, $subject, $message, $headers)) {
echo "HTML Email sent successfully!";
} else {
echo "HTML Email sending failed!";
}
?>
Sending attachments requires encoding the file content and including it in the email body with the appropriate headers.
<?php
// Define recipient, subject, and message
$to = "recipient@example.com";
$subject = "Test Email with Attachment";
$message = "This email contains an attachment.";
// Define attachment
$file = "path/to/file.txt";
$file_content = chunk_split(base64_encode(file_get_contents($file)));
$file_name = basename($file);
// Define boundary
$boundary = md5(time());
// Define headers for attachment
$headers = "From: sender@example.com" . "\r\n";
$headers .= "Reply-To: sender@example.com" . "\r\n";
$headers .= "Content-Type: multipart/mixed; boundary=\"$boundary\"" . "\r\n";
// Define email body with attachment
$body = "--$boundary\r\n";
$body .= "Content-Type: text/plain; charset=UTF-8\r\n";
$body .= "Content-Transfer-Encoding: 7bit\r\n\r\n";
$body .= $message . "\r\n\r\n";
$body .= "--$boundary\r\n";
$body .= "Content-Type: application/octet-stream; name=\"$file_name\"\r\n";
$body .= "Content-Transfer-Encoding: base64\r\n";
$body .= "Content-Disposition: attachment; filename=\"$file_name\"\r\n\r\n";
$body .= $file_content . "\r\n";
$body .= "--$boundary--";
// Send email with attachment
if(mail($to, $subject, $body, $headers)) {
echo "Email with attachment sent successfully!";
} else {
echo "Email with attachment sending failed!";
}
?>
Some common issues when sending emails include incorrect SMTP configuration, email being marked as spam, or missing headers.
<?php
// Ensure SMTP configuration is correct in php.ini
// Uncomment and configure the following lines in php.ini
// SMTP = smtp.example.com
// smtp_port = 25
?>
PHPMailer is a popular library for sending emails using SMTP and supports many features such as attachments, HTML emails, and more.
<?php
// Include PHPMailer files
require 'PHPMailerAutoload.php';
// Create instance of PHPMailer
$mail = new PHPMailer;
// Set mail parameters
$mail->isSMTP();
$mail->Host = 'smtp.example.com';
$mail->SMTPAuth = true;
$mail->Username = 'user@example.com';
$mail->Password = 'password';
$mail->SMTPSecure = 'tls';
$mail->Port = 587;
// Set sender and recipient
$mail->setFrom('sender@example.com', 'Sender Name');
$mail->addAddress('recipient@example.com');
// Set subject and body
$mail->Subject = 'Test PHPMailer Email';
$mail->Body = 'This is a test email using PHPMailer!';
// Send email
if($mail->send()) {
echo 'Email sent successfully!';
} else {
echo 'Email sending failed: ' . $mail->ErrorInfo;
}
?>
When using SMTP for sending emails, make sure to configure the SMTP server correctly and authenticate using proper credentials.
<?php
// Configure SMTP in PHP settings or use PHPMailer for better flexibility.
// Ensure correct SMTP server and authentication details are set.
?>
Scalar type declarations allow you to define the types of function arguments and return values for scalar types like int, float, string, and bool.
<?php
// Scalar type declarations in PHP 7 and above
function add(int $a, int $b): int {
return $a + $b; // Function expects two integers and returns an integer
}
echo add(2, 3); // Outputs: 5
?>
Return type declarations specify the type of the value that a function will return. This helps ensure that the return value matches the expected type.
<?php
// Return type declarations in PHP 7 and above
function multiply(float $a, float $b): float {
return $a * $b; // Function expects two floats and returns a float
}
echo multiply(2.5, 4); // Outputs: 10
?>
The null coalescing operator (??) is used to check if a value is null, and if it is, it returns a default value instead.
<?php
// Null Coalescing Operator (PHP 7 and above)
$username = $_GET['username'] ?? 'guest'; // If 'username' is not set or null, use 'guest'
echo $username; // Outputs: guest if 'username' is not set
?>
The match expression (match) is a more flexible and safer version of the switch statement, introduced in PHP 8. It supports strict comparison and does not require a break statement.
<?php
// Match Expression (PHP 8 and above)
$status = 200;
$message = match ($status) {
200 => 'OK',
404 => 'Not Found',
500 => 'Server Error',
default => 'Unknown Status',
};
echo $message; // Outputs: OK
?>
Constructor property promotion simplifies the syntax for declaring and initializing properties directly in the constructor, introduced in PHP 8.
<?php
// Constructor Property Promotion (PHP 8 and above)
class User {
public function __construct(
public string $name,
public int $age
) {}
}
$user = new User('John', 30);
echo $user->name . ' is ' . $user->age . ' years old.'; // Outputs: John is 30 years old.
?>
Named arguments allow you to pass arguments to a function based on the parameter name, rather than their position. This was introduced in PHP 8.
<?php
// Named Arguments (PHP 8 and above)
function createUser(string $name, int $age, string $role = 'guest') {
return "$name, $age years old, role: $role";
}
echo createUser(age: 25, name: 'Alice'); // Outputs: Alice, 25 years old, role: guest
?>
Fibers and enumerations were introduced in PHP 8.1. Fibers allow you to suspend and resume functions, while enumerations provide a way to define a set of named constants in a more robust way than simple class constants.
<?php
// Fibers (PHP 8.1 and above)
$fiber = new Fiber(function (): void {
echo "Fiber started\n";
Fiber::suspend();
echo "Fiber resumed\n";
});
$fiber->start(); // Outputs: Fiber started
$fiber->resume(); // Outputs: Fiber resumed
// Enumerations (PHP 8.1 and above)
enum Status {
case Pending;
case Completed;
case Failed;
}
$status = Status::Pending;
echo $status->name; // Outputs: Pending
?>
SQL Injection is a security vulnerability that allows an attacker to interfere with the queries your application makes to its database. The best way to prevent SQL injection is by using prepared statements with bound parameters.
<!-- Example of SQL Injection Prevention -->
<?php
$pdo = new PDO("mysql:host=localhost;dbname=mydatabase", "username", "password");
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$stmt->bindParam(':username', $_POST['username']);
$stmt->execute();
$user = $stmt->fetch();
echo "User: " . $user['username'];
?>
Cross-site scripting (XSS) attacks occur when an attacker injects malicious scripts into content that other users view. To prevent XSS, always sanitize and escape user input before displaying it on the page.
<!-- Example of XSS Prevention -->
<?php
// Sanitizing user input
$user_input = htmlspecialchars($_POST['user_input'], ENT_QUOTES, 'UTF-8');
echo "User input: " . $user_input;
?>
Cross-Site Request Forgery (CSRF) attacks trick the user into executing unwanted actions on a web application where they are authenticated. To prevent CSRF, include a token in every form, and validate the token server-side.
<!-- Example of CSRF Protection -->
<?php
session_start();
// Generate CSRF token
if (empty($_SESSION['csrf_token'])) {
$_SESSION['csrf_token'] = bin2hex(random_bytes(32));
}
?>
<!-- HTML Form with CSRF Token -->
<form method="POST" action="submit.php">
<!-- Other form fields here -->
<button type="submit">Submit</button>
</form>
Input sanitization ensures that user input is safe to use in your application, preventing attacks such as SQL injection or XSS. Functions like filter_var() and htmlspecialchars() are used to sanitize input.
<!-- Example of Input Sanitization -->
<?php
$email = filter_var($_POST['email'], FILTER_SANITIZE_EMAIL);
$url = filter_var($_POST['url'], FILTER_SANITIZE_URL);
echo "Sanitized Email: " . $email;
?>
The Model-View-Controller (MVC) pattern is a design pattern that separates an application into three interconnected components:
/app
/controllers
/models
/views
/public
/index.php
Composer is a dependency manager for PHP, and autoloading allows classes to be automatically loaded when needed. To enable autoloading in Composer, define an autoload section in your composer.json file.
<!-- Example of Composer Autoloading -->
<?php
// Run composer dump-autoload to generate the autoloader
require 'vendor/autoload.php';
use App\Models\User;
$user = new User();
?>
Unit testing is a critical part of the development process. PHPUnit is a framework for writing unit tests in PHP. Here's how you can write a simple test case:
<!-- Example of PHPUnit Test -->
<?php
use PHPUnit\Framework\TestCase;
class MathTest extends TestCase {
public function testAdd() {
$this->assertEquals(4, 2 + 2);
}
}
?>
Dependency Injection (DI) is a design pattern where an object receives other objects it depends on (its dependencies) from an external source rather than creating them internally.
<?php
// Example class with dependency injection
class Logger {
public function log($message) {
echo "Log: $message";
}
}
class UserService {
private $logger;
// Inject Logger dependency via constructor
public function __construct(Logger $logger) {
$this->logger = $logger;
}
public function register($user) {
$this->logger->log("User $user registered");
}
}
$logger = new Logger(); // Create Logger instance
$service = new UserService($logger); // Inject logger into UserService
$service->register('Alice'); // Use service
?>
Manual DI means creating and injecting dependencies manually, while containers automate this process using mappings and bindings.
<?php // Manual DI example (shown above) // Containers automatically resolve dependencies based on configuration ?>
A service container manages object creation and dependency resolution.
<?php
class Container {
protected $bindings = [];
// Bind a service to a resolver (closure)
public function bind($name, $resolver) {
$this->bindings[$name] = $resolver;
}
// Resolve a service
public function make($name) {
if (isset($this->bindings[$name])) {
return $this->bindings[$name]($this); // Call resolver
}
throw new Exception("Service not found");
}
}
// Bind services
$container = new Container();
$container->bind('logger', function () {
return new Logger();
});
$container->bind('userService', function ($c) {
return new UserService($c->make('logger')); // Inject logger
});
$service = $container->make('userService'); // Resolve UserService
$service->register('Bob'); // Use service
?>
Services are bound to the container and later resolved when needed. This supports loose coupling and better testability.
<?php // See binding above with bind() and make() ?>
- **Factory**: Each call to `make()` creates a new instance.
- **Singleton**: Same instance is reused for every call.
<?php
class SingletonContainer {
protected $bindings = [];
protected $instances = [];
public function singleton($name, $resolver) {
$this->bindings[$name] = $resolver;
}
public function make($name) {
if (!isset($this->instances[$name])) {
$this->instances[$name] = $this->bindings[$name]($this);
}
return $this->instances[$name];
}
}
// Singleton usage
$container = new SingletonContainer();
$container->singleton('logger', function () {
return new Logger();
});
$logger1 = $container->make('logger');
$logger2 = $container->make('logger');
echo ($logger1 === $logger2) ? "Same instance" : "Different instances";
?>
Laravel's service container automatically resolves dependencies via type hinting.
// Laravel Controller Example
class UserController extends Controller {
protected $service;
// Laravel injects UserService automatically
public function __construct(UserService $service) {
$this->service = $service;
}
public function register(Request $request) {
$this->service->register($request->name);
}
}
// Laravel handles container binding automatically
app()->make(UserController::class);
In traditional synchronous (sync) PHP, tasks are executed one after the other. In asynchronous (async) PHP, tasks can be initiated and allowed to complete while continuing with other logic.
<?php // Simulating synchronous behavior echo "Start processing\n"; // Output start sleep(3); // Wait for 3 seconds echo "Finished processing\n"; // Output end ?>
pcntl_fork() allows you to fork processes (Linux only). exec() can run shell commands asynchronously.
<?php
// Check if pcntl is available
if (function_exists('pcntl_fork')) {
$pid = pcntl_fork(); // Fork the current process
if ($pid == -1) {
die("Could not fork process"); // Handle failure
} elseif ($pid) {
echo "Parent process continues\n"; // Parent continues
} else {
sleep(2); // Simulate child doing something
echo "Child process done\n"; // Output from child
exit(); // End child
}
} else {
echo "pcntl is not available on this system.\n";
}
?>
ReactPHP is an event-driven, non-blocking I/O library for PHP. It allows building async applications like Node.js.
// Example: Basic ReactPHP HTTP server
// Run with: php server.php
require 'vendor/autoload.php'; // Load Composer packages
$loop = React\EventLoop\Factory::create(); // Create an event loop
$server = new React\Http\Server(function ($request) {
return React\Http\Message\Response::plaintext(200, [], "Hello from ReactPHP!");
});
$socket = new React\Socket\SocketServer('127.0.0.1:8080', [], $loop); // Bind to port
$server->listen($socket); // Start listening
echo "Server running at http://127.0.0.1:8080\n";
$loop->run(); // Run the loop
ReactPHP uses Promises (like JavaScript) to handle future results. This enables you to run tasks asynchronously without blocking the script.
use React\Promise\Promise;
function asyncOperation() {
return new Promise(function ($resolve) {
// Simulate async delay
echo "Working...\n";
sleep(1);
$resolve("Done!");
});
}
asyncOperation()->then(function ($value) {
echo $value . "\n";
});
Guzzle is a PHP HTTP client that supports async requests using Promises. You must install it via Composer.
// Run: composer require guzzlehttp/guzzle
require 'vendor/autoload.php';
use GuzzleHttp\Client;
$client = new Client();
$promise = $client->getAsync('https://jsonplaceholder.typicode.com/todos/1');
$promise->then(
function ($response) {
echo $response->getBody();
},
function ($error) {
echo "Error: " . $error->getMessage();
}
);
// Prevent script from exiting before the response
$promise->wait();
You can handle background tasks in PHP using queues such as RabbitMQ, Beanstalkd, or Redis queues. Laravel uses queues to process jobs asynchronously.
// Laravel Example: Dispatching a job MyJob::dispatch($data); // Will be handled by a queue worker in background // Worker command: php artisan queue:work
<?php
// This simple RESTful API returns a JSON response based on a query string.
if ($_SERVER['REQUEST_METHOD'] === 'GET') {
$data = ["message" => "Hello API"];
header('Content-Type: application/json');
echo json_encode($data);
}
?>
<?php
// Basic routing simulation using query string (?route=about)
$route = $_GET['route'] ?? 'home';
switch ($route) {
case 'about':
echo "About Page";
break;
case 'contact':
echo "Contact Page";
break;
default:
echo "Home Page";
}
?>
<?php
// Encoding PHP array to JSON
$array = ["name" => "Alice", "age" => 30];
echo json_encode($array);
// Decoding JSON string to PHP array
$json = '{"name":"Bob","age":25}';
$phpArray = json_decode($json, true);
print_r($phpArray);
?>
<?php
$ch = curl_init("https://jsonplaceholder.typicode.com/posts/1");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>
// composer require guzzlehttp/guzzle
<?php
require 'vendor/autoload.php';
use GuzzleHttp\Client;
$client = new Client();
$response = $client->get('https://jsonplaceholder.typicode.com/posts/1');
echo $response->getBody();
?>
// Outline using Google OAuth2
// Steps: 1. Redirect to Google, 2. Receive code, 3. Exchange for token
// Redirect user
header('Location: https://accounts.google.com/o/oauth2/auth?client_id=YOUR_ID&redirect_uri=YOUR_URI&response_type=code&scope=email');
exit();
// Exchange code for token with POST request
// Use Guzzle or cURL to send to https://oauth2.googleapis.com/token
// Use firebase/php-jwt // composer require firebase/php-jwt <?php use Firebase\JWT\JWT; use Firebase\JWT\Key; $key = 'secretkey'; $payload = ["user" => "admin"]; $jwt = JWT::encode($payload, $key, 'HS256'); echo $jwt; // Decode example: $decoded = JWT::decode($jwt, new Key($key, 'HS256')); print_r($decoded); ?>
SOLID stands for five key design principles:
<?php
class Invoice {
public function calculateTotal() {
return 100;
}
}
class InvoicePrinter {
public function print(Invoice $invoice) {
echo "Total: " . $invoice->calculateTotal();
}
}
$invoice = new Invoice();
$printer = new InvoicePrinter();
$printer->print($invoice);
?>
<?php
interface PaymentStrategy {
public function pay($amount);
}
class Paypal implements PaymentStrategy {
public function pay($amount) {
echo "Paying $amount using PayPal.";
}
}
class CreditCard implements PaymentStrategy {
public function pay($amount) {
echo "Paying $amount using Credit Card.";
}
}
class PaymentProcessor {
private $method;
public function __construct(PaymentStrategy $method) {
$this->method = $method;
}
public function process($amount) {
$this->method->pay($amount);
}
}
$processor = new PaymentProcessor(new Paypal());
$processor->process(50);
?>
<?php
interface Animal {
public function speak();
}
class Dog implements Animal {
public function speak() {
return "Woof!";
}
}
class Cat implements Animal {
public function speak() {
return "Meow!";
}
}
class AnimalFactory {
public static function create($type) {
if ($type == 'dog') return new Dog();
if ($type == 'cat') return new Cat();
throw new Exception("Animal not found.");
}
}
$animal = AnimalFactory::create('dog');
echo $animal->speak();
?>
<?php
interface Observer {
public function update($message);
}
class EmailNotifier implements Observer {
public function update($message) {
echo "Email: $message";
}
}
class Logger implements Observer {
public function update($message) {
echo "Log: $message";
}
}
class Subject {
private $observers = [];
public function attach(Observer $observer) {
$this->observers[] = $observer;
}
public function notify($message) {
foreach ($this->observers as $observer) {
$observer->update($message);
}
}
}
$subject = new Subject();
$subject->attach(new EmailNotifier());
$subject->attach(new Logger());
$subject->notify("Order placed!");
?>
<?php
trait LoggerTrait {
public function log($msg) {
echo "Logging: $msg";
}
}
class Product {
use LoggerTrait;
public function create() {
$this->log("Product created");
}
}
$product = new Product();
$product->create();
?>
<?php
class StaticLogger {
public static function log($msg) {
echo "Static log: $msg";
}
}
StaticLogger::log("Hello");
?>
<?php
class ServiceLogger {
public function log($msg) {
echo "Injected log: $msg";
}
}
class Service {
private $logger;
public function __construct(ServiceLogger $logger) {
$this->logger = $logger;
}
public function run() {
$this->logger->log("Running service");
}
}
$service = new Service(new ServiceLogger());
$service->run();
?>
<?php
interface Shape {
public function area();
}
class Square implements Shape {
private $side = 5;
public function area() {
return $this->side * $this->side;
}
}
$square = new Square();
echo $square->area();
?>
<?php
abstract class Vehicle {
abstract public function move();
}
class Car extends Vehicle {
public function move() {
return "Car moves";
}
}
$car = new Car();
echo $car->move();
?>
WebSockets provide a persistent, full-duplex communication channel between the client and server, enabling real-time data exchange without the overhead of traditional HTTP requests.
:contentReference[oaicite:6]{index=6}Ratchet is a PHP library for implementing WebSocket servers. Below is an example of setting up a basic WebSocket server using Ratchet.
:contentReference[oaicite:9]{index=9}
<?php
// Include Ratchet library classes
use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;
// Define Chat class implementing MessageComponentInterface
class Chat implements MessageComponentInterface {
protected $clients;
public function __construct() {
// Create a storage for connected clients
$this->clients = new \SplObjectStorage;
}
public function onOpen(ConnectionInterface $conn) {
// Store the new connection
$this->clients->attach($conn);
echo "New connection! ({$conn->resourceId})\n";
}
public function onMessage(ConnectionInterface $from, $msg) {
// Broadcast the received message to all connected clients
foreach ($this->clients as $client) {
if ($from !== $client) {
$client->send($msg);
}
}
}
public function onClose(ConnectionInterface $conn) {
// Remove the connection from the storage
$this->clients->detach($conn);
echo "Connection {$conn->resourceId} has disconnected\n";
}
public function onError(ConnectionInterface $conn, \Exception $e) {
echo "An error has occurred: {$e->getMessage()}\n";
$conn->close();
}
}
// Run the server
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
require __DIR__ . '/vendor/autoload.php';
$server = IoServer::factory(
new HttpServer(
new WsServer(
new Chat()
)
),
8080
);
$server->run();
?>
With the WebSocket server running, clients can connect and exchange messages in real-time. Below is an example of a simple HTML client that connects to the server and sends messages.
:contentReference[oaicite:12]{index=12}
<!DOCTYPE html>
<html>
<head>
<title>WebSocket Chat Client</title>
</head>
<body>
<h2>WebSocket Chat</h2>
<input type="text" id="message" placeholder="Enter message" />
<button onclick="sendMessage()">Send</button>
<ul id="chat"></ul>
<script>
// Create a new WebSocket connection
const socket = new WebSocket('ws://localhost:8080');
// Event handler for receiving messages
socket.onmessage = function(event) {
const chat = document.getElementById('chat');
const message = document.createElement('li');
message.textContent = event.data;
chat.appendChild(message);
};
// Function to send messages
function sendMessage() {
const input = document.getElementById('message');
const message = input.value;
socket.send(message);
input.value = '';
}
</script>
</body>
</html>
The above example demonstrates how to integrate a PHP WebSocket server with a JavaScript frontend, enabling real-time communication between clients.
:contentReference[oaicite:15]{index=15}Laravel provides built-in support for broadcasting events using drivers like Pusher. Below is an example of setting up broadcasting in Laravel.
:contentReference[oaicite:18]{index=18}
// .env configuration
BROADCAST_DRIVER=pusher
PUSHER_APP_ID=your-app-id
PUSHER_APP_KEY=your-app-key
PUSHER_APP_SECRET=your-app-secret
PUSHER_HOST=
PUSHER_PORT=443
PUSHER_SCHEME=https
// Event class
namespace App\Events;
use Illuminate\Broadcasting\Channel;
use Illuminate\Queue\SerializesModels;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
class MessageSent implements ShouldBroadcast
{
use Dispatchable, InteractsWithSockets, SerializesModels;
public $message;
public function __construct($message)
{
$this->message = $message;
}
public function broadcastOn()
{
return new Channel('chat');
}
}
<script src="https://js.pusher.com/7.0/pusher.min.js"></script>
<script src="/js/app.js"></script>
<script>
// Initialize Laravel Echo with Pusher
import Echo from 'laravel-echo';
window.Pusher = require('pusher-js');
window.Echo = new Echo({
broadcaster: 'pusher',
key: 'your-app-key',
cluster: 'mt1',
encrypted: true
});
// Listen for the MessageSent event
window.Echo.channel('chat')
.listen('MessageSent', (e) => {
console.log('Message received:', e.message);
});
</script>
<?php
$apiKey = 'your-api-key';
$apiUrl = 'https://api.openai.com/v1/completions';
$data = [
'model' => 'text-davinci-003',
'prompt' => 'What is PHP?',
'max_tokens' => 100
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: AI's response to the prompt, e.g., "PHP is a server-side scripting language..."
<?php
$apiKey = 'your-api-key';
$apiUrl = 'https://api.openai.com/v1/completions';
$data = [
'model' => 'text-davinci-003',
'prompt' => 'Please analyze the sentiment of the following text: "I love using PHP for web development!"',
'max_tokens' => 100
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: "Positive sentiment"
<?php
$apiKey = 'your-deepai-api-key';
$apiUrl = 'https://api.deepai.org/api/image-recognition';
$imagePath = 'path_to_image.jpg';
$imageData = [
'image' => new CURLFile($imagePath)
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey
]);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $imageData);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>
Output: JSON response with image classification details
<?php
require 'vendor/autoload.php';
use Google\Cloud\Speech\V1\SpeechClient;
use Google\Cloud\Speech\V1\RecognitionConfig;
use Google\Cloud\Speech\V1\RecognitionAudio;
$client = new SpeechClient();
$audio = (new RecognitionAudio())
->setUri('gs://your-bucket/audio-file.flac');
$config = (new RecognitionConfig())
->setEncoding(RecognitionConfig\AudioEncoding::LINEAR16)
->setSampleRateHertz(16000)
->setLanguageCode('en-US');
$response = $client->recognize($config, $audio);
foreach ($response->getResults() as $result) {
echo $result->getAlternatives()[0]->getTranscript();
}
?>
Output: Transcription of the audio file
<?php
$apiKey = 'your-dialogflow-api-key';
$apiUrl = 'https://api.dialogflow.com/v1/query?v=20150910';
$data = [
'query' => 'What is PHP?',
'lang' => 'en',
'sessionId' => '12345'
];
$options = [
'http' => [
'header' => "Authorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: DialogFlow chatbot response
<?php
require 'vendor/autoload.php';
use Google\Cloud\Translate\V2\TranslateClient;
$translate = new TranslateClient();
$text = 'Hello, how are you?';
$target = 'es';
$translation = $translate->translate($text, ['target' => $target]);
echo $translation['text'];
?>
Output: "Hola, ¿cómo estás?" (Translation to Spanish)
<?php
$apiKey = 'your-api-key'; // Store your OpenAI API key
$apiUrl = 'https://api.openai.com/v1/completions'; // OpenAI API endpoint for completions
// Define the data to send in the POST request
$data = [
'model' => 'text-davinci-003', // The model to use
'prompt' => 'Generate a short paragraph about AI in PHP.', // The prompt for the model
'max_tokens' => 100 // Limit the response tokens
];
// Create an HTTP context with appropriate headers
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set content type and authorization
'method' => 'POST', // Use POST method
'content' => json_encode($data) // Encode the data to JSON
]
];
// Create the stream context for the request
$context = stream_context_create($options);
// Send the request and capture the response
$response = file_get_contents($apiUrl, false, $context);
// Output the response
echo $response;
?>
Output: Generated AI text
<?php
$apiKey = 'your-deepai-api-key'; // Replace with your actual DeepAI API key
$apiUrl = 'https://api.deepai.org/api/text2img'; // API endpoint for DeepAI text-to-image
// Define the data to send with the POST request
$data = [
'text' => 'A futuristic city with flying cars' // The text prompt describing the image to generate
];
// Set the HTTP context options including headers and content
$options = [
'http' => [
'header' => "Api-Key: $apiKey", // Authorization header with API key
'method' => 'POST', // Use POST method to send the request
'content' => http_build_query($data) // URL-encode the data for the POST body
]
];
// Create a stream context from the options array
$context = stream_context_create($options);
// Send the HTTP request and capture the response
$response = file_get_contents($apiUrl, false, $context);
// Output the result returned from the API
echo $response;
?>
Output: JSON response with image URL
<?php
$apiKey = 'your-api-key'; // Replace with your DeepAI API key
$apiUrl = 'https://api.deepai.org/api/video-thumbnail'; // API endpoint for generating video thumbnails
// Prepare the video file for upload using CURLFile
$data = [
'video' => new CURLFile('video.mp4') // Replace 'video.mp4' with the path to your video file
];
// Initialize cURL session
$ch = curl_init();
// Set the URL to send the POST request to
curl_setopt($ch, CURLOPT_URL, $apiUrl);
// Set to return the response as a string instead of outputting it
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// Set the HTTP headers, including your API key
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Authentication header
]);
// Indicate that this is a POST request
curl_setopt($ch, CURLOPT_POST, 1);
// Attach the video file as POST data
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
// Execute the cURL session and store the response
$response = curl_exec($ch);
// Close the cURL session to free up resources
curl_close($ch);
// Output the response from the API
echo $response;
?>
Output: JSON response with generated thumbnail image URL
<?php
// Example assumes that a pre-trained AI model is hosted via an API.
$apiKey = 'your-model-api-key'; // Your API key for authentication
$apiUrl = 'https://api.custom-ai.com/model-inference'; // The endpoint of the AI model's API
// Prepare the data payload to send to the model
$data = [
'input' => 'text or image data here' // Replace with actual input data
];
// Create HTTP request options
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers including content type and API key
'method' => 'POST', // Use the POST method
'content' => json_encode($data) // Convert the data array to JSON
]
];
// Create the stream context with the options
$context = stream_context_create($options);
// Send the HTTP request and capture the response
$response = file_get_contents($apiUrl, false, $context);
// Output the response from the API
echo $response;
?>
Output: Inference results from the custom AI model
<?php
// Set the API key used for authentication
$apiKey = 'your-api-key';
// Define the URL endpoint of the forecasting API
$apiUrl = 'https://api.ai-forecasting.com/v1/predict';
// Prepare the data to be sent to the AI forecasting API
$data = [
'model' => 'trend-prediction', // Specify the model name
'data' => [10, 20, 30, 40, 50] // Example dataset for trend prediction
];
// Configure the HTTP options for the POST request
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers for JSON content and API key
'method' => 'POST', // HTTP request method
'content' => json_encode($data) // Encode the data array to JSON format
]
];
// Create a stream context with the above options
$context = stream_context_create($options);
// Send the request and receive the response
$response = file_get_contents($apiUrl, false, $context);
// Output the API response
echo $response;
?>
Output: Predicted trend values for the input data
<?php
$apiKey = 'your-api-key';
$apiUrl = 'https://api.ai-visualization.com/v1/chart';
$data = [
'data' => [15, 30, 45, 60],
'type' => 'bar',
'labels' => ['A', 'B', 'C', 'D']
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: JSON response with chart data or image URL
<?php
$apiKey = 'your-api-key';
$apiUrl = 'https://api.nlp.ai/v1/classify';
$data = [
'text' => 'PHP is a popular scripting language used for web development.'
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Text classification result, e.g., "Web Development"
<?php
$apiKey = 'your-api-key';
$apiUrl = 'https://api.ai-chatbot.com/v1/respond';
$data = [
'message' => 'Hello, how are you today?',
'sessionId' => '12345'
];
$options = [
'http' => [
'header' => "Authorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Chatbot's AI response, e.g., "I'm doing great, how about you?"
<?php
$apiKey = 'your-api-key';
$apiUrl = 'https://api.deepai.org/api/image-captioning';
$data = [
'image' => new CURLFile('path_to_image.jpg')
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey
]);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>
Output: Generated image caption, e.g., "A dog playing in the park"
<?php
$apiKey = 'your-google-cloud-api-key';
$apiUrl = 'https://speech.googleapis.com/v1/speech:recognize';
$data = [
'config' => [
'encoding' => 'LINEAR16',
'sampleRateHertz' => 16000,
'languageCode' => 'en-US',
],
'audio' => [
'uri' => 'gs://your-bucket/audio.wav'
]
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context => stream_context_create($options);
$response => file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Speech-to-text conversion result (transcribed text)
<?php
$apiKey = 'your-google-cloud-api-key';
$apiUrl = 'https://texttospeech.googleapis.com/v1/text:synthesize';
$data = [
'input' => [
'text' => 'Hello, welcome to the AI integration tutorial.'
],
'voice' => [
'languageCode' => 'en-US',
'name' => 'en-US-Wavenet-D'
],
'audioConfig' => [
'audioEncoding' => 'MP3'
]
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context => stream_context_create($options);
$response => file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Audio content in MP3 format
<?php
$apiKey = 'your-google-cloud-api-key';
$apiUrl = 'https://translation.googleapis.com/language/translate/v2';
$data = [
'q' => 'Hello, how are you?',
'target' => 'es' // Spanish translation
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context => stream_context_create($options);
$response => file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Translated text in Spanish, e.g., "Hola, ¿cómo estás?"
<?php
$apiKey = 'your-sentiment-api-key';
$apiUrl = 'https://api.sentimentanalysis.com/v1/analyze';
$data = [
'text' => 'I love this product, it is amazing!'
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context => stream_context_create($options);
$response => file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Sentiment analysis result, e.g., "Positive"
<?php
$apiKey = 'your-fraud-detection-api-key';
$apiUrl = 'https://api.frauddetection.com/v1/check';
$data = [
'transaction' => [
'amount' => 1000,
'location' => 'New York',
'account' => '123456789'
]
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context => stream_context_create($options);
$response => file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Fraud detection result, e.g., "Fraudulent transaction detected"
<?php
$apiKey = 'your-recommendation-api-key'; // Your API key
$apiUrl = 'https://api.recommendation.com/v1/recommend'; // Endpoint URL
$data = [
'user' => 'user123', // User identifier
'preferences' => ['action', 'comedy', 'drama'] // User preferences
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Headers
'method' => 'POST', // Use POST
'content' => json_encode($data) // JSON-encoded payload
]
];
// Create the stream context for the HTTP request
$context = stream_context_create($options);
// Send the request and get the response
$response = file_get_contents($apiUrl, false, $context);
// Output the API response
echo $response;
?>
Output: Recommended movies based on user preferences
<?php
$apiKey = 'your-api-key'; // Your API key for DeepAI
$apiUrl = 'https://api.deepai.org/api/torch-srgan'; // DeepAI endpoint for image enhancement
$data = [
'image' => new CURLFile('path_to_image.jpg') // Path to the image for enhancement
];
// Initialize cURL session
$ch = curl_init();
// Set cURL options
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the API request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return response as string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the API key header
]);
curl_setopt($ch, CURLOPT_POST, 1); // Use POST method
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach image data for POST
// Execute the request and get the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Output the response from the API
echo $response;
?>
Output: Enhanced version of the uploaded image
<?php
$apiKey = 'your-api-key'; // Your API key for DeepAI
$apiUrl = 'https://api.deepai.org/api/detect-object'; // DeepAI object detection endpoint
$data = [
'image' => new CURLFile('path_to_image.jpg') // Path to the image for object detection
];
// Initialize cURL session
$ch = curl_init();
// Set cURL options
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the API request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return response as string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the API key header
]);
curl_setopt($ch, CURLOPT_POST, 1); // Use POST method
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach image data for POST
// Execute the request and get the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Output the response from the API
echo $response;
?>
Output: JSON response with detected objects and bounding boxes
<?php
$apiKey = 'your-api-key'; // Your API key for DeepAI
$apiUrl = 'https://api.deepai.org/api/face-recognition'; // DeepAI face recognition endpoint
$data = [
'image' => new CURLFile('path_to_image.jpg') // Path to the image for face recognition
];
// Initialize cURL session
$ch = curl_init();
// Set cURL options
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the API request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return response as string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the API key header
]);
curl_setopt($ch, CURLOPT_POST, 1); // Use POST method
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach image data for POST
// Execute the request and get the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Output the response from the API
echo $response;
?>
Output: Detected faces with coordinates in JSON format
<?php
$apiKey = 'your-emotion-api-key'; // Your API key for emotion detection
$apiUrl = 'https://api.emotiondetection.com/v1/detect'; // Emotion detection API endpoint
$data = [
'audio' => new CURLFile('path_to_audio.wav') // Path to the audio file for emotion detection
];
// Initialize cURL session
$ch = curl_init();
// Set cURL options
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the API request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return response as string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the API key header
]);
curl_setopt($ch, CURLOPT_POST, 1); // Use POST method
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach audio data for POST
// Execute the request and get the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Output the response from the API
echo $response;
?>
Output: Emotional tone detected in the audio (e.g., "Happy", "Sad")
<?php
$apiKey = 'your-nlp-api-key'; // Your API key for NLP services
$apiUrl = 'https://api.nlp.com/v1/summarize'; // NLP API endpoint for text summarization
$data = [
'text' => 'The quick brown fox jumps over the lazy dog. The dog then barks loudly and runs away.' // Text to summarize
];
// Set HTTP options for the request
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers with API key
'method' => 'POST', // Set HTTP method to POST
'content' => json_encode($data) // Convert the data to JSON format
]
];
// Create the context for the request
$context => stream_context_create($options);
// Send the request and get the response
$response = file_get_contents($apiUrl, false, $context);
// Output the response
echo $response;
?>
Output: A summarized version of the input text
<?php
$apiKey = 'your-style-transfer-api-key'; // Your API key for style transfer service
$apiUrl = 'https://api.imagestyletransfer.com/v1/style-transfer'; // API endpoint for style transfer
$data = [
'content_image' => new CURLFile('path_to_content_image.jpg'), // Path to content image
'style_image' => new CURLFile('path_to_style_image.jpg') // Path to style image
];
// Initialize the cURL session
$ch = curl_init();
// Set the cURL options
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set API endpoint
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the API key in the headers
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Set the data to send
// Execute the request and capture the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Output the response from the API
echo $response;
?>
Output: Image with the style of the chosen artwork applied
<?php
$apiKey = 'your-predictive-text-api-key'; // Your API key for predictive text service
$apiUrl = 'https://api.predictivetext.com/v1/next-word'; // API endpoint for next-word prediction
$data = [
'input' => 'The weather today is' // Text input to predict the next word
];
// Set up HTTP context options
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set content type and authorization header
'method' => 'POST', // Set method to POST
'content' => json_encode($data) // Convert input data to JSON format
]
];
// Create the HTTP context
$context => stream_context_create($options);
// Send the HTTP request and get the response
$response = file_get_contents($apiUrl, false, $context);
// Output the response from the API
echo $response;
?>
Output: Predicted next word based on the input text
<?php
$apiKey = 'your-video-analysis-api-key'; // Your API key for video analysis service
$apiUrl = 'https://api.videoanalysis.com/v1/analyze'; // API endpoint for video analysis
$data = [
'video' => new CURLFile('path_to_video.mp4') // Path to the video file to be analyzed
];
// Initialize cURL session
$ch = curl_init();
// Set cURL options
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the API URL
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set API key for authentication
]);
curl_setopt($ch, CURLOPT_POST, 1); // Use POST method
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the video file to the request
// Execute the cURL request and get the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Output the response from the API
echo $response;
?>
Output: Analysis of video content (e.g., identified objects, events, or actions)
<?php
$apiKey = 'your-speech-recognition-api-key'; // Your API key for speech recognition service
$apiUrl = 'https://api.speechrecognition.com/v1/convert'; // API endpoint for speech-to-text conversion
$data = [
'audio_file' => new CURLFile('path_to_audio_file.wav') // Path to the audio file to be transcribed
];
// Initialize cURL session
$ch = curl_init();
// Set cURL options
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the API URL
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set API key for authentication
]);
curl_setopt($ch, CURLOPT_POST, 1); // Use POST method
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the audio file to the request
// Execute the cURL request and get the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Output the response from the API
echo $response;
?>
Output: Text representation of the spoken words from the audio file.
<?php
$apiKey = 'your-recommendation-api-key'; // Your API key for recommendation service
$apiUrl = 'https://api.recommendationai.com/v1/products/recommend'; // API endpoint for product recommendations
$data = [
'user_id' => '12345', // User ID for personalized recommendations
'purchase_history' => 'purchase_history.json' // Path to user's purchase history file
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set content type and authorization header
'method' => 'POST', // Use POST method for sending data
'content' => json_encode($data) // Convert data array to JSON format
]
];
// Create a stream context with the specified options
$context => stream_context_create($options);
// Send the HTTP request and capture the response
$response = file_get_contents($apiUrl, false, $context);
// Output the response from the API
echo $response;
?>
Output: List of recommended products based on the user’s previous purchases.
<?php
$apiKey = 'your-maintenance-api-key'; // Your API key for maintenance service
$apiUrl = 'https://api.maintenanceai.com/v1/predict'; // API endpoint for predictive maintenance
$data = [
'machine_id' => '123', // Machine ID for which to predict maintenance needs
'sensor_data' => 'sensor_data.json' // Path to the sensor data file
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set content type and authorization header
'method' => 'POST', // Use POST method for sending data
'content' => json_encode($data) // Convert data array to JSON format
]
];
// Create a stream context with the specified options
$context => stream_context_create($options);
// Send the HTTP request and capture the response
$response = file_get_contents($apiUrl, false, $context);
// Output the response from the API
echo $response;
?>
Output: Prediction result for maintenance requirements (e.g., ‘No Maintenance Required’, ‘Maintenance Due Soon’)
<?php
$apiKey = 'your-text-generation-api-key'; // Your API key for text generation service
$apiUrl = 'https://api.textgeneration.com/v1/generate'; // API endpoint for text generation
$data = [
'prompt' => 'Once upon a time, in a faraway land,', // Initial prompt for text generation
'length' => 100 // Desired length of the generated text
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set content type and authorization header
'method' => 'POST', // Use POST method for sending data
'content' => json_encode($data) // Convert data array to JSON format
]
];
// Create a stream context with the specified options
$context => stream_context_create($options);
// Send the HTTP request and capture the response
$response = file_get_contents($apiUrl, false, $context);
// Output the response from the API
echo $response;
?>
Output: AI-generated continuation of the given prompt.
<?php
$apiKey = 'your-image-recognition-api-key'; // Your API key for image recognition service
$apiUrl = 'https://api.imagerecognition.com/v1/detect'; // API endpoint for image detection
$data = [
'image' => new CURLFile('path_to_image.jpg') // Path to the image you want to analyze
];
$ch = curl_init();
// Set the URL for the API request
curl_setopt($ch, CURLOPT_URL, $apiUrl);
// Return the response as a string instead of outputting it directly
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// Set the authorization header with the API key
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey
]);
// Set the request method to POST
curl_setopt($ch, CURLOPT_POST, 1);
// Attach the data to the request
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
// Execute the cURL request and get the response
$response = curl_exec($ch);
// Close the cURL session
curl_close($ch);
// Output the response from the API
echo $response;
?>
Output: List of objects detected in the image with coordinates.
<?php
$apiKey = 'your-voice-synthesis-api-key'; // Your API key for voice synthesis service
$apiUrl = 'https://api.voicesynthesis.com/v1/synthesize'; // API endpoint for synthesizing voice
$data = [
'text' => 'Hello, welcome to the AI course!', // Text you want to convert to speech
'voice' => 'en_us_male' // Choose the voice type (e.g., male, female, language)
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the headers with content type and authorization
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode data as JSON for the request body
]
];
$context = stream_context_create($options); // Create a stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the API
?>
Output: Audio file of the synthesized speech.
<?php
$apiKey = 'your-data-analytics-api-key'; // Your API key for data analytics service
$apiUrl = 'https://api.dataanalytics.com/v1/analyze'; // API endpoint for data analysis
$data = [
'sales_data' => 'sales_data.csv' // Path to your sales data file (CSV format)
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the headers with content type and authorization
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode data as JSON for the request body
]
];
$context = stream_context_create($options); // Create a stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the API
?>
Output: Generated insights from sales data (e.g., trends, patterns, predictions)
<?php
$apiKey = 'your-financial-analysis-api-key'; // Your API key for financial analysis service
$apiUrl = 'https://api.financialanalysis.com/v1/risk-assess'; // API endpoint for risk assessment
$data = [
'investment_data' => 'investment_data.json' // Path to your investment data file (JSON format)
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the headers with content type and authorization
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode data as JSON for the request body
]
];
$context = stream_context_create($options); // Create a stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the API
?>
Output: Financial risk analysis report (e.g., low, medium, high risk)
<?php
$apiKey = 'your-virtual-assistant-api-key'; // Your API key for the virtual assistant service
$apiUrl = 'https://api.virtualassistant.com/v1/assist'; // API endpoint for virtual assistant
$data = [
'command' => 'What is the weather today?' // Command to ask the virtual assistant about the weather
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the headers with content type and authorization
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode data as JSON for the request body
]
];
$context = stream_context_create($options); // Create a stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the virtual assistant API
?>
Output: Response from the virtual assistant (e.g., 'The weather today is sunny and 25°C.')
<?php
$apiKey = 'your-fraud-detection-api-key'; // Your API key for the fraud detection service
$apiUrl = 'https://api.frauddetection.com/v1/detect'; // API endpoint for fraud detection
$data = [
'transaction_data' => 'transaction_data.json' // The transaction data in JSON format
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the headers with content type and authorization
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode the data as JSON for the request body
]
];
$context = stream_context_create($options); // Create a stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the fraud detection API
?>
Output: Fraud detection result (e.g., 'Fraudulent Transaction Detected' or 'No Fraud Detected')
<?php
$apiKey = 'your-chatbot-api-key'; // Your API key for the chatbot service
$apiUrl = 'https://api.chatbot.com/v1/message'; // API endpoint for sending a message to the chatbot
$data = [
'message' => 'How can I help you today?' // The message to be sent to the chatbot
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the headers with content type and authorization
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode the data as JSON for the request body
]
];
$context = stream_context_create($options); // Create a stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the chatbot API
?>
Output: Chatbot response (e.g., 'I am here to assist you. How can I help?')
<?php
$apiKey = 'your-image-enhancement-api-key'; // Your API key for the image enhancement service
$apiUrl = 'https://api.imageenhancement.com/v1/enhance'; // API endpoint for enhancing the image
$data = [
'image' => new CURLFile('low_res_image.jpg') // The image file to be enhanced
];
$ch = curl_init(); // Initialize the cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the API endpoint URL
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Set the option to return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the API key for authorization
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the HTTP method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the image data to the request
$response = curl_exec($ch); // Execute the cURL request and store the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response from the image enhancement API
?>
Output: Enhanced high-resolution image.
<?php
$apiKey = 'your-nlp-api-key'; // Your API key for the NLP service
$apiUrl = 'https://api.nlp.com/v1/summarize'; // API endpoint for text summarization
$data = [
'text' => 'Your long text to be summarized here.' // The long text to be summarized
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the content type and API key in the request header
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Convert the data array to a JSON string
]
];
$context = stream_context_create($options); // Create the stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and store the response
echo $response; // Output the response from the NLP API
?>
Output: A brief summary of the provided text.
<?php
$apiKey = 'your-time-series-api-key'; // Your API key for time series forecasting
$apiUrl = 'https://api.timeseriesforecasting.com/v1/predict'; // API endpoint for time series forecasting
$data = [
'historical_data' => 'historical_stock_data.csv' // Path to the historical stock data CSV file
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the content type and API key in the request header
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Convert the data array to a JSON string
]
];
$context = stream_context_create($options); // Create the stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and store the response
echo $response; // Output the response from the time series API
?>
Output: Predicted future stock prices for the given data.
<?php
$apiKey = 'your-image-captioning-api-key'; // Your API key for image captioning
$apiUrl = 'https://api.imagecaptioning.com/v1/generate-caption'; // API endpoint for generating captions for images
$data = [
'image' => new CURLFile('path_to_image.jpg') // Path to the image you want to generate a caption for
];
$ch = curl_init(); // Initialize cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the API endpoint URL
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the API key in the request header
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the HTTP method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the data to the POST request
$response = curl_exec($ch); // Execute the cURL request and store the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response (caption generated for the image)
?>
Output: Generated caption for the image (e.g., 'A group of people sitting at a table with laptops.')
<?php
$apiKey = 'your-style-transfer-api-key'; // Your API key for style transfer
$apiUrl = 'https://api.imagestyletransfer.com/v1/apply-style'; // API endpoint for applying style transfer to an image
$data = [
'image' => new CURLFile('input_image.jpg'), // Path to the input image
'style' => 'painting_style.jpg' // Path to the style image
];
$ch = curl_init(); // Initialize cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the API endpoint URL
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the API key in the request header
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the HTTP method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the data to the POST request
$response = curl_exec($ch); // Execute the cURL request and store the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response (style-transferred image result)
?>
Output: The image with the applied artistic style.
<?php
$apiKey = 'your-translation-api-key'; // Your API key for translation service
$apiUrl = 'https://api.translation.com/v1/translate'; // API endpoint for translation
$data = [
'text' => 'Hello, how are you?', // Text to be translated
'target_language' => 'es' // Target language code (Spanish in this case)
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers with API key
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode data to JSON format
]
];
$context = stream_context_create($options); // Create stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response (translated text)
?>
Output: Translated text (e.g., 'Hola, ¿cómo estás?')
<?php
$apiKey = 'your-sentiment-analysis-api-key'; // Your API key for sentiment analysis service
$apiUrl = 'https://api.sentimentanalysis.com/v1/analyze'; // API endpoint for sentiment analysis
$data = [
'text' => 'I love this product! It works perfectly.' // Text to be analyzed
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers with API key
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode data to JSON format
]
];
$context = stream_context_create($options); // Create stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response (sentiment analysis result)
?>
Output: Sentiment analysis result (e.g., 'Positive sentiment detected.')
<?php
$apiKey = 'your-recommendation-api-key'; // Your API key for recommendation service
$apiUrl = 'https://api.recommendation.com/v1/recommend'; // API endpoint for recommendations
$data = [
'user_id' => '12345' // User ID to get personalized recommendations
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers with API key
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode data to JSON format
]
];
$context = stream_context_create($options); // Create stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response (recommendation result)
?>
Output: Recommended products or content for the user based on AI algorithms.
<?php
$apiKey = 'your-speech-recognition-api-key'; // Your API key for speech recognition service
$apiUrl = 'https://api.speechrecognition.com/v1/recognize'; // API endpoint for speech recognition
$data = [
'audio' => new CURLFile('audio_file.wav') // The audio file to be processed
];
$ch = curl_init(); // Initialize cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Set to return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the authorization header with the API key
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the request method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the data (audio file) to the request
$response = curl_exec($ch); // Execute the request and get the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response (recognized text)
?>
Output: The transcribed text from the audio file.
<?php
$apiKey = 'your-object-detection-api-key'; // Your API key for object detection service
$apiUrl = 'https://api.objectdetection.com/v1/detect'; // API endpoint for object detection
$data = [
'image' => new CURLFile('image.jpg') // The image file to be processed for object detection
];
$ch = curl_init(); // Initialize cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Set to return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the authorization header with the API key
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the request method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the image to the request
$response = curl_exec($ch); // Execute the request and get the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response (object detection result)
?>
Output: Detected objects in the image with their labels and confidence scores.
<?php
$apiKey = 'your-text-summary-api-key'; // Your API key for text summarization service
$apiUrl = 'https://api.textsummarization.com/v1/summarize'; // API endpoint for text summarization
$data = [
'text' => 'Your lengthy article or text content goes here. It can be multiple paragraphs long, and the AI will condense it into a shorter summary.' // The text to be summarized
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers for the request
'method' => 'POST', // Set method to POST
'content' => json_encode($data) // Send the data as JSON
]
];
$context = stream_context_create($options); // Create stream context with options
$response = file_get_contents($apiUrl, false, $context); // Make the request and get the response
echo $response; // Output the response (the summary)
?>
Output: A concise summary of the provided text.
<?php
$apiKey = 'your-text-classification-api-key'; // Your API key for text classification service
$apiUrl = 'https://api.textclassification.com/v1/classify'; // API endpoint for text classification
$data = [
'text' => 'This product is absolutely fantastic! It works perfectly, and I love it.' // The text to be classified
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers for the request
'method' => 'POST', // Set method to POST
'content' => json_encode($data) // Send the data as JSON
]
];
$context = stream_context_create($options); // Create stream context with options
$response = file_get_contents($apiUrl, false, $context); // Make the request and get the response
echo $response; // Output the response (the classification result)
?>
Output: Classification result (e.g., 'Positive')
<?php
$apiKey = 'your-chatbot-api-key'; // Your API key for the chatbot service
$apiUrl = 'https://api.chatbot.com/v1/chat'; // API endpoint for sending messages to the chatbot
$data = [
'message' => 'Hello, how can I help you today?' // The message to be sent to the chatbot
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers for the request
'method' => 'POST', // Set method to POST
'content' => json_encode($data) // Send the message as JSON
]
];
$context = stream_context_create($options); // Create stream context with options
$response = file_get_contents($apiUrl, false, $context); // Make the request and get the response
echo $response; // Output the response (the chatbot's reply)
?>
Output: The chatbot's response to the user's input.
<?php
$apiKey = 'your-text-to-speech-api-key'; // Your API key for the Text-to-Speech service
$apiUrl = 'https://api.texttospeech.com/v1/synthesize'; // API endpoint for text-to-speech synthesis
$data = [
'text' => 'Hello! Welcome to the world of AI.' // The text to be converted into speech
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers for the request
'method' => 'POST', // Set method to POST
'content' => json_encode($data) // Send the text as JSON
]
];
$context = stream_context_create($options); // Create stream context with options
$response = file_get_contents($apiUrl, false, $context); // Make the request and get the response
echo $response; // Output the response (the audio URL or error message)
?>
Output: The speech output of the given text.
<?php
$apiKey = 'your-realtime-analytics-api-key'; // Your API key for the Real-Time Analytics service
$apiUrl = 'https://api.realtimeanalytics.com/v1/analyze'; // API endpoint for real-time analytics
$data = [
'data' => 'Social media post data or other real-time data to analyze.' // The data to be analyzed
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers for the request
'method' => 'POST', // Set method to POST
'content' => json_encode($data) // Send the data as JSON
]
];
$context = stream_context_create($options); // Create stream context with options
$response = file_get_contents($apiUrl, false, $context); // Make the request and get the response
echo $response; // Output the response from the API
?>
Output: The real-time analytics results, such as sentiment trends or engagement data.
<?php
$apiKey = 'your-colorization-api-key'; // Your API key for the colorization service
$apiUrl = 'https://api.imagecolorization.com/v1/colorize'; // API endpoint for colorization
$data = [
'image' => new CURLFile('black_and_white_image.jpg') // The image to be colorized
];
$ch = curl_init(); // Initialize cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Add API key to the request headers
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the request method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach data (image) to the request
$response = curl_exec($ch); // Execute the request and get the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response from the API
?>
Output: The colorized version of the black-and-white image.
<?php
$apiKey = 'your-video-analysis-api-key'; // Your API key for the video analysis service
$apiUrl = 'https://api.videoanalysis.com/v1/analyze'; // API endpoint for video analysis
$data = [
'video' => new CURLFile('video.mp4') // The video file to be analyzed
];
$ch = curl_init(); // Initialize cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Add API key to the request headers
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the request method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach data (video) to the request
$response = curl_exec($ch); // Execute the request and get the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response from the API
?>
Output: Analysis results such as detected actions or objects within the video.
<?php
$apiKey = 'your-fraud-detection-api-key'; // Your API key for fraud detection service
$apiUrl = 'https://api.frauddetection.com/v1/detect'; // API endpoint for fraud detection
$data = [
'transaction_data' => 'Transaction details for analysis.' // The transaction details for analysis
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers for request
'method' => 'POST', // Request method is POST
'content' => json_encode($data) // Encode data as JSON
]
];
$context = stream_context_create($options); // Create the stream context with options
$response = file_get_contents($apiUrl, false, $context); // Execute the request and get the response
echo $response; // Output the response from the API
?>
Output: Fraud detection results indicating whether the transaction is fraudulent or not.
<?php
$apiKey = 'your-predictive-analytics-api-key'; // Your API key for predictive analytics service
$apiUrl = 'https://api.predictiveanalytics.com/v1/predict'; // API endpoint for predictive analytics
$data = [
'historical_data' => 'Previous sales data to predict future trends.' // The historical data for prediction
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers for request
'method' => 'POST', // Request method is POST
'content' => json_encode($data) // Encode data as JSON
]
];
$context = stream_context_create($options); // Create the stream context with options
$response = file_get_contents($apiUrl, false, $context); // Execute the request and get the response
echo $response; // Output the response from the API
?>
Output: Predicted future sales trends based on the input data.
<?php
$apiKey = 'your-sentiment-analysis-api-key'; // Your API key for sentiment analysis service
$apiUrl = 'https://api.sentimentanalysis.com/v1/analyze'; // API endpoint for sentiment analysis
$data = [
'text' => 'I absolutely love this product! It works amazingly well.' // The text to analyze for sentiment
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set headers for request
'method' => 'POST', // Request method is POST
'content' => json_encode($data) // Encode data as JSON
]
];
$context = stream_context_create($options); // Create the stream context with options
$response = file_get_contents($apiUrl, false, $context); // Execute the request and get the response
echo $response; // Output the response from the API
?>
Output: Sentiment score (e.g., Positive)
<?php
$apiKey = 'your-facial-recognition-api-key'; // Your API key for facial recognition service
$apiUrl = 'https://api.facialrecognition.com/v1/recognize'; // API endpoint for facial recognition
$data = [
'image' => new CURLFile('face_image.jpg') // The image file to be analyzed
];
$ch = curl_init(); // Initialize cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the API request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the API key in the header
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set request method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the data (image) to the request
$response = curl_exec($ch); // Execute the request and get the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response from the API
?>
Output: Detected faces and associated details such as names or IDs.
<?php
$apiKey = 'your-translation-api-key'; // Your API key for the translation service
$apiUrl = 'https://api.translation.com/v1/translate'; // API endpoint for translation
$data = [
'text' => 'Hello, how are you?', // The text to be translated
'source_language' => 'en', // The source language (English)
'target_language' => 'es' // The target language (Spanish)
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the content type and authorization header
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode the data as JSON
]
];
$context = stream_context_create($options); // Create the context for the request
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the API
?>
Output: Translated text (e.g., 'Hola, ¿cómo estás?')
<?php
$apiKey = 'your-music-generation-api-key'; // Your API key for the music generation service
$apiUrl = 'https://api.musicgeneration.com/v1/generate'; // API endpoint for music generation
$data = [
'style' => 'classical', // The style of music to generate (e.g., classical)
'duration' => '3' // Duration of the generated music in minutes
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the content type and authorization header
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode the data as JSON
]
];
$context = stream_context_create($options); // Create the context for the request
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the API
?>
Output: Generated music file in the specified style.
<?php
$apiKey = 'your-video-generation-api-key'; // Your API key for the video generation service
$apiUrl = 'https://api.videogeneration.com/v1/generate'; // API endpoint for video generation
$data = [
'text' => 'This is a sample video description for AI to generate a video.' // Text input for video generation
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the content type and authorization header
'method' => 'POST', // Set the HTTP method to POST
'content' => json_encode($data) // Encode the data as JSON
]
];
$context = stream_context_create($options); // Create the context for the request
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the API
?>
Output: Generated video based on the provided text or images.
<?php
$apiKey = 'your-style-transfer-api-key'; // Your API key for the style transfer service
$apiUrl = 'https://api.imagetransfer.com/v1/style-transfer'; // API endpoint for style transfer
$data = [
'image' => new CURLFile('original_image.jpg'), // The original image to apply style transfer to
'style_image' => new CURLFile('style_image.jpg') // The image that defines the desired style
];
$ch = curl_init(); // Initialize cURL
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL to the API endpoint
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Set the API key for authorization
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the request method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the data to the request
$response = curl_exec($ch); // Execute the cURL request and get the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response from the API
?>
Output: The transformed image with the artistic style applied.
<?php
$apiKey = 'your-text-summary-api-key'; // Your API key for the text summarization service
$apiUrl = 'https://api.textsummary.com/v1/summarize'; // API endpoint for text summarization
$data = [
'text' => 'A long text that needs to be summarized...' // The text that you want to summarize
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the content type and authorization headers
'method' => 'POST', // Set the request method to POST
'content' => json_encode($data) // Attach the data to the request
]
];
$context = stream_context_create($options); // Create the stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the API
?>
Output: A short summary of the input text.
<?php
$apiKey = 'your-keyword-extraction-api-key'; // Your API key for keyword extraction service
$apiUrl = 'https://api.keywordextraction.com/v1/extract'; // API endpoint for keyword extraction
$data = [
'text' => 'AI is transforming the world by automating tasks and making processes more efficient.' // The text from which you want to extract keywords
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the content type and authorization headers
'method' => 'POST', // Set the request method to POST
'content' => json_encode($data) // Attach the data to the request
]
];
$context = stream_context_create($options); // Create the stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the API
?>
Output: Extracted keywords (e.g., AI, world, automating, tasks, efficient).
<?php
$apiKey = 'your-chatbot-api-key'; // Your API key for the chatbot service
$apiUrl = 'https://api.chatbot.com/v1/ask'; // API endpoint for sending queries to the chatbot
$data = [
'query' => 'How can I reset my password?' // The question/query you want to ask the chatbot
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the content type and authorization headers
'method' => 'POST', // Set the request method to POST
'content' => json_encode($data) // Attach the data to the request
]
];
$context = stream_context_create($options); // Create the stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the chatbot
?>
Output: A chatbot response to the customer's question.
<?php
$apiKey = 'your-data-cleaning-api-key'; // Your API key for the data cleaning service
$apiUrl = 'https://api.datacleaning.com/v1/clean'; // API endpoint for cleaning data
$data = [
'data' => 'Raw data with errors or inconsistencies.' // The data that needs cleaning
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Set the content type and authorization headers
'method' => 'POST', // Set the request method to POST
'content' => json_encode($data) // Attach the data to the request
]
];
$context = stream_context_create($options); // Create the stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the data cleaning service
?>
Output: Cleaned data with inconsistencies removed.
<?php
$apiKey = 'your-visual-search-api-key'; // Your API key for the visual search service
$apiUrl = 'https://api.visualsearch.com/v1/search'; // API endpoint for visual search
$data = [
'image' => new CURLFile('search_image.jpg') // The image file to be searched
];
$ch = curl_init(); // Initialize cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Add the API key in the request header
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the request method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the image data to the request
$response = curl_exec($ch); // Execute the request and get the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response from the visual search service
?>
Output: Results of visual search, identifying objects or similar images.
<?php
$apiKey = 'your-speech-recognition-api-key'; // Your API key for the speech recognition service
$apiUrl = 'https://api.speechrecognition.com/v1/recognize'; // API endpoint for speech recognition
$data = [
'audio_file' => new CURLFile('audio_sample.wav') // The audio file to be recognized
];
$ch = curl_init(); // Initialize cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Add the API key in the request header
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the request method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the audio data to the request
$response = curl_exec($ch); // Execute the request and get the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response from the speech recognition service
?>
Output: Recognized text from the voice command.
<?php
$apiKey = 'your-image-recognition-api-key'; // Your API key for the image recognition service
$apiUrl = 'https://api.imagerecognition.com/v1/recognize'; // API endpoint for image recognition
$data = [
'image' => new CURLFile('image.jpg') // The image file to be recognized
];
$ch = curl_init(); // Initialize cURL session
curl_setopt($ch, CURLOPT_URL, $apiUrl); // Set the URL for the request
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Return the response as a string
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey // Add the API key in the request header
]);
curl_setopt($ch, CURLOPT_POST, 1); // Set the request method to POST
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); // Attach the image data to the request
$response = curl_exec($ch); // Execute the request and get the response
curl_close($ch); // Close the cURL session
echo $response; // Output the response from the image recognition service
?>
Output: A list of objects detected in the image, such as "dog", "cat", or "car".
<?php
$apiKey = 'your-translation-api-key'; // Your API key for the translation service
$apiUrl = 'https://api.translation.com/v1/translate'; // API endpoint for translation
$data = [
'text' => 'Hello, how are you?', // Text to be translated
'target_language' => 'es' // Target language (Spanish)
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey", // Headers for the request
'method' => 'POST', // Set the request method to POST
'content' => json_encode($data) // Attach the data to the request as JSON
]
];
$context = stream_context_create($options); // Create a stream context with the options
$response = file_get_contents($apiUrl, false, $context); // Send the request and get the response
echo $response; // Output the response from the translation service
?>
Output: Translated text (e.g., "Hola, ¿cómo estás?" for Spanish).
<?php
$apiKey = 'your-text-generation-api-key';
$apiUrl = 'https://api.textgen.com/v1/generate';
$data = [
'prompt' => 'Write a short story about a dragon and a knight.'
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: AI-generated text, such as a short story about a dragon and a knight.
<?php
$apiKey = 'your-sentiment-analysis-api-key';
$apiUrl = 'https://api.sentimentanalysis.com/v1/analyze';
$data = [
'text' => 'I love this product, it’s amazing!'
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Sentiment score (e.g., Positive sentiment)
<?php
$apiKey = 'your-speech-to-text-api-key';
$apiUrl = 'https://api.speechtotext.com/v1/convert';
$data = [
'audio' => new CURLFile('audio_input.wav')
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey
]);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>
Output: Transcribed text from the speech in the audio file.
<?php
$apiKey = 'your-predictive-analytics-api-key';
$apiUrl = 'https://api.predictiveanalytics.com/v1/predict';
$data = [
'data' => [
['date' => '2023-01-01', 'value' => 150],
['date' => '2023-01-02', 'value' => 170],
['date' => '2023-01-03', 'value' => 160]
]
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Predicted values based on historical data trends.
<?php
$apiKey = 'your-object-detection-api-key';
$apiUrl = 'https://api.objectdetection.com/v1/detect';
$data = [
'image' => new CURLFile('image_with_objects.jpg')
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey
]);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>
Output: List of objects detected in the image, along with their positions.
<?php
$apiKey = 'your-text-summarization-api-key';
$apiUrl = 'https://api.textsummarization.com/v1/summarize';
$data = [
'text' => 'Artificial Intelligence (AI) is intelligence demonstrated by machines, in contrast to the natural intelligence displayed by humans and animals. Leading AI textbooks define the field as the study of "intelligent agents": any device that perceives its environment and takes actions that maximize its chance of successfully achieving its goals.'
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: A brief summary of the provided text.
<?php
$apiKey = 'your-speech-recognition-api-key';
$apiUrl = 'https://api.speechrecognition.com/v1/recognize';
$data = [
'audio' => new CURLFile('speech_audio.wav')
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey
]);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>
Output: Text transcript of the speech in the audio file.
<?php
$apiKey = 'your-chatbot-api-key';
$apiUrl = 'https://api.chatbot.com/v1/message';
$data = [
'message' => 'Hello, how are you?',
'session_id' => '123456'
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: AI-generated response to the chatbot message (e.g., "I am doing well, thank you!")
<?php
$apiKey = 'your-recommendation-api-key';
$apiUrl = 'https://api.recommendations.com/v1/recommend';
$data = [
'user_id' => 123,
'items' => ['item1', 'item2', 'item3']
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: A list of personalized product or service recommendations.
<?php
$apiKey = 'your-anomaly-detection-api-key';
$apiUrl = 'https://api.anomalydetection.com/v1/detect';
$data = [
'data' => [100, 200, 150, 300, 1000, 120, 110]
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Detected anomaly (e.g., the value "1000" is an anomaly).
<?php
$apiKey = 'your-data-analysis-api-key';
$apiUrl = 'https://api.dataanalysis.com/v1/analyze';
$data = [
'data' => [
['date' => '2023-01-01', 'sales' => 200],
['date' => '2023-01-02', 'sales' => 250],
['date' => '2023-01-03', 'sales' => 180]
]
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Data analysis insights, such as sales trends and patterns.
<?php
$apiKey = 'your-fraud-detection-api-key';
$apiUrl = 'https://api.frauddetection.com/v1/detect';
$data = [
'transaction_data' => [
'amount' => 1500,
'location' => 'New York',
'transaction_type' => 'purchase'
]
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Fraud detection result, such as "Fraudulent transaction detected."
<?php
$apiKey = 'your-image-recognition-api-key';
$apiUrl = 'https://api.imagerecognition.com/v1/recognize';
$data = [
'image' => new CURLFile('image.jpg')
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey
]);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>
Output: Detected objects in the image (e.g., "cat", "dog").
<?php
$apiKey = 'your-nlp-api-key';
$apiUrl = 'https://api.nlp.com/v1/analyze';
$data = [
'text' => 'Artificial intelligence is transforming the world.'
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Analysis of the text (e.g., sentiment, keywords).
<?php
$apiKey = 'your-video-processing-api-key';
$apiUrl = 'https://api.videoprocessing.com/v1/analyze';
$data = [
'video' => new CURLFile('video.mp4')
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey
]);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>
Output: Video analysis results (e.g., detected faces, motion).
<?php
$apiKey = 'your-object-tracking-api-key';
$apiUrl = 'https://api.objecttracking.com/v1/track';
$data = [
'video' => new CURLFile('tracking_video.mp4')
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Api-Key: ' . $apiKey
]);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>
Output: Object tracking data (e.g., coordinates of the tracked object).
<?php
$apiKey = 'your-predictive-analytics-api-key';
$apiUrl = 'https://api.predictiveanalytics.com/v1/predict';
$data = [
'data' => [
['month' => 'January', 'sales' => 100],
['month' => 'February', 'sales' => 150],
['month' => 'March', 'sales' => 130]
]
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Predicted sales for the next quarter.
<?php
$apiKey = 'your-data-classification-api-key';
$apiUrl = 'https://api.dataclassification.com/v1/classify';
$data = [
'data' => ['email_subject' => 'Special Offer on Electronics!']
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Classification result (e.g., "Promotional Email").
<?php
$apiKey = 'your-sentiment-analysis-api-key';
$apiUrl = 'https://api.sentimentanalysis.com/v1/analyze';
$data = [
'text' => 'I love this product, it works perfectly!'
];
$options = [
'http' => [
'header' => "Content-Type: application/json\r\nAuthorization: Bearer $apiKey",
'method' => 'POST',
'content' => json_encode($data)
]
];
$context = stream_context_create($options);
$response = file_get_contents($apiUrl, false, $context);
echo $response;
?>
Output: Sentiment analysis result (e.g., "Positive sentiment").