$router = new Router();

try
{
	$router->setPath(SEITEPATH . 'controllers');
}
catch(Exception $ex)
{
	die("Error: " . $ex->getMessage());
}

$router->delegate();

<?php
class Router 
{
	private $registry;
	
	private $path;
	
	private $args = array();
	
	
	function __construct() 
	{
	
		$this->registry = Registry::getInstance();
	
	}

	
	public function setPath($path) 
	{
		$path = trim($path, '/\\');
	
		$path .= DIRSEP;
	
		$this->path = $path;
	
	}

	public function delegate() 
	{

     // Path parsen

         $this->getController($file, $controller, $action, $args);
         if (is_readable($file) === false) 
         {
                 error404();

         }


         // Datei verbinden
         include ($file);


         // Controller Instanz erzeugen
         
         $class = $controller;

         $controller = new $class();

         
         // Ist Action verfГƒВјgbar?

         if (is_callable(array($controller, $action)) == false) 
         {

         	error404();

         }


         $this->registry->args = $args;
         // Action aufrufen

         $controller->$action();	
	}
	
	
	private function getController(&$file, &$controller, &$action, &$args) 
	{

         $route = (empty($_GET['route'])) ? '' : $_GET['route'];
		 
         if (empty($route)) 
         { 
         	$route = 'index'; 
         }

         if (trim(strtolower($route), '/\\') == 'mobile') 
         { 
         	$route = 'mobile/index'; 
         }
         
         // Parsen auf Teile

         $route = trim($route, '/\\');

         $parts = explode('/', $route);
		 
         // Suchen Controller

         //die($route);
         
         
         $cmd_path = $this->path;
         $os = strtoupper(substr(PHP_OS, 0, 3)) === 'WIN' ? 'win' : 'linux';
         if($os == 'linux')
         {
         	$cmd_path = DIRSEP . $cmd_path;
         }
         
         
         foreach ($parts as $part) 
         {
				
                 $fullpath = $cmd_path . 'controller_' . strtolower($part);
                 // Ist das Verzeichnis?
                 if (is_dir($cmd_path . strtolower($part))) 
                 {		
						$cmd_path .= $part . DIRSEP;

                         array_shift($parts);

                         continue;

                 }


                 // Datei suchen
 
				 
                 if (is_file($fullpath . '.php')) 
                 {
                         $controller = 'Controller' . $part;
                         array_shift($parts);

                         break;

                 }

         }


         if (empty($controller)) 
         { 
         	$controller = 'ControllerIndex'; 
         }

         // Action erzeugen

         $action = array_shift($parts);
         if (!isset($action) || $action == '') 
         { 
         	$action = 'index'; 
         }

         $file = $cmd_path . str_replace('controller', 'controller_', strtolower($controller)) . '.php';
		 
         $args = $parts;
		 
 	}
	
	
} // Class Router