What are some examples of routing in PHP?

What are some examples of routing in PHP?

In PHP, routing refers to the process of mapping URLs to specific functions or controllers. For example, using a framework like Laravel, you can define routes in the web.php file like this:

Route::get('/users', 'UserController@index');
Route::post('/users', 'UserController@store');

This maps the /users URL to the index method of the UserController for GET requests and the store method for POST requests.

Can you give me a simple example without a framework?

Sure! Here's a basic example of routing in plain PHP:

$requestUri = $_SERVER['REQUEST_URI'];

switch ($requestUri) {
    case '/':
        echo 'Home Page';
        break;
    case '/about':
        echo 'About Page';
        break;
    default:
        echo '404 Not Found';
}

This code checks the requested URI and displays different content based on the route.

How can I handle parameters in the URL?

You can handle parameters by using the explode function to split the URL. For example:

$requestUri = $_SERVER['REQUEST_URI'];
$parts = explode('/', trim($requestUri, '/'));

if ($parts[0] == 'user' && isset($parts[1])) {
    echo 'User ID: ' . htmlspecialchars($parts[1]);
} else {
    echo '404 Not Found';
}

This will capture a user ID from the URL like /user/123.