[PHP] simple router klasse

<?php
namespace Shotly\System;
if(!defined('IN_CMS'))
  exit ('Permission denied.');
class Router {
	public static function add($url, $ControllerMethod) {
		if(!array_key_exists($url, self::$routes)) {
			$controllerMethod = explode('@', $ControllerMethod);
			self::$routes[$url] = [$controllerMethod[0], $controllerMethod[1]];
		}
	}
	public static function run() {
		self::$routeFile = include('routes.php');
		self::check();
	}
	private static function check() {
		$requestURI = explode('/', trim($_SERVER['REQUEST_URI'], '/'));
		$scriptName = explode('/', trim($_SERVER['SCRIPT_NAME'], '/'));
		$parts = array_diff_assoc($requestURI, $scriptName);
		if (empty($parts))
		{
			return '/';
		}
		$uri = implode('/', $parts);
		if (isset(self::$routes[$uri]))
		{
                       //gefunden im array
		}
		else {
                      //error
		}
	}
	private static function get($uri) {
		if(array_key_exists($uri, self::$routes)) {
			return self::$routes[$uri];
		}
		else {
			return null;
		}
	}
	private static function ErrorDispatcher() {
	}
	public static function redirect($url, $errorCode = null) {
	}
	private static $routes = [];
	private static $routeFile;
}