How can PHP routing be implemented to improve the organization of PHP applications and avoid unnecessary file redirections?

PHP routing can be implemented using a front controller pattern to improve the organization of PHP applications. This involves directing all requests through a single PHP file which then routes the request to the appropriate controller based on the URL. This can help avoid unnecessary file redirections and centralize the logic for handling different routes in one place. 

// index.php

// Define routes
$routes = [
    '/' => 'HomeController',
    '/about' => 'AboutController',
    '/contact' => 'ContactController'
];

// Get the current route
$route = $_SERVER['REQUEST_URI'];

// Route the request to the appropriate controller
if(array_key_exists($route, $routes)) {
    $controller = $routes[$route];
    include_once $controller . '.php';
} else {
    echo '404 - Page not found';
}

Keywords

PHP routing organization file redirections implementation applications

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