Online PHP Editor and Web Development Tool

Free online PHP editor with real-time execution, HTML/CSS integration, and console output. Perfect for web development, learning PHP, and testing code snippets.

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Features

PHP Execution

Execute PHP code directly in your browser with php.wasm

Web Integration

HTML and CSS integration for web development

Error Handling

Detailed error messages and stack traces

Console Output

Real-time console output with print and var_dump support

Code Sharing

Share your PHP code snippets with others

File Import/Export

Import and export PHP files with ease

Frequently Asked Questions

How to get started with PHP web development?

Start with basic PHP embedded in HTML:

<!DOCTYPE html>
<html>
<head>
    <title>PHP Example</title>
</head>
<body>
    <?php
        // Variables and string interpolation
        $name = "PHP";
        echo "Hello, $name!";

        // Basic operations
        $a = 5;
        $b = 10;
        echo "Sum: " . ($a + $b);
    ?>
</body>
</html>

Our editor provides real-time execution and error feedback.

How to handle forms in PHP?

Learn form handling with POST and GET methods:

<!-- HTML Form -->
<form method="POST" action="">
    <input type="text" name="username">
    <input type="email" name="email">
    <button type="submit" name="submit">Send</button>
</form>

<?php
// Form processing
if (isset($_POST['submit'])) {
    // Validate and sanitize input
    $username = filter_input(
        INPUT_POST,
        'username',
        FILTER_SANITIZE_STRING
    );
    $email = filter_input(
        INPUT_POST,
        'email',
        FILTER_VALIDATE_EMAIL
    );

    if ($email === false) {
        echo "Invalid email";
    }
}

Test form handling in our editor with the built-in console.

What are the limitations of PHP-WASM in this editor?

PHP-WASM has certain limitations when running in the browser:

File System Restrictions:
- No direct file system access
- fopen(), file_get_contents() with URLs unavailable

Network Limitations:

// These won't work
curl_init();
file_get_contents('https://example.com');

Memory Constraints:
- Limited by browser memory
- Large scripts may timeout
Extension Support:
- Basic extensions only
- No MySQL, PostgreSQL

Despite these limitations, most core PHP features work well for learning and testing.

How does Vrzno integration work in this editor?

Vrzno allows PHP-WASM to interact with the browser DOM:

// Check if Vrzno is available
if (function_exists('vrzno_eval')) {
    // Update DOM element
    vrzno_eval(
        "document.getElementById('output').innerHTML = 'Hello from PHP!'"
    );

    // Use JavaScript functions
    vrzno_eval(
        "alert('Message from PHP');"
    );

    // Pass PHP values to JavaScript
    $data = ['name' => 'John', 'age' => 30];
    vrzno_eval(
        "console.log('PHP Data:', " . json_encode($data) . ");"
    );
}

This bridges PHP and JavaScript, enabling dynamic content updates.

How to work with arrays and loops in PHP?

Explore PHP array operations and loops:

// Indexed arrays
$fruits = ['apple', 'banana', 'orange'];

// Associative arrays
$user = [
    'name' => 'John',
    'age' => 30,
    'roles' => ['admin', 'editor']
];

// foreach loop
foreach ($fruits as $fruit) {
    echo "$fruit\n";
}

// Array functions
$numbers = [1, 2, 3, 4, 5];
$doubled = array_map(function($n) {
    return $n * 2;
}, $numbers);

// Array filtering
$even = array_filter($numbers, function($n) {
    return $n % 2 === 0;
});

Our editor supports all PHP array operations with instant output.

How to handle errors and exceptions in PHP?

Learn error and exception handling:

// Set error reporting
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Try-catch blocks
try {
    $result = someFunction();
    if (!$result) {
        throw new Exception('Operation failed');
    }
} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
    echo "\nStack trace: " . $e->getTraceAsString();
}

// Custom error handler
set_error_handler(function($errno, $errstr, $errfile, $errline) {
    echo "Error [$errno]: $errstr\n";
    echo "Line: $errline in $errfile";
    return true;
});

Our editor shows detailed error messages and stack traces.

How to use PHP functions and classes?

Master PHP functions and object-oriented programming:

// Function with type hints
function add(int $a, int $b): int {
    return $a + $b;
}

// Class definition
class User {
    private string $name;
    private int $age;

    public function __construct(string $name, int $age) {
        $this->name = $name;
        $this->age = $age;
    }

    public function getInfo(): string {
        return "$this->name is $this->age years old";
    }
}

// Using the class
$user = new User("John", 30);
echo $user->getInfo();

Practice object-oriented PHP in our editor with instant feedback.

How to debug PHP code in this browser environment?

Use various debugging techniques:

// Basic variable inspection
$data = ['name' => 'John', 'age' => 30];
var_dump($data);

// Pretty print arrays
print_r($data);

// Debug to console using Vrzno
if (function_exists('vrzno_eval')) {
    vrzno_eval(
        "console.log('Debug:', " . 
        json_encode($data, JSON_PRETTY_PRINT) .
        ");"
    );
}

// Custom debug function
function debug($var, $label = '') {
    echo "<pre>";
    echo "$label: ";
    var_export($var);
    echo "</pre>";
}

The editor's console shows all output and errors in real-time.