class Router {

    private $uri;
    private $controller;
    private $action;
    private $params;

    public function __construct($uri) {
        $this->uri = $uri;
        $this->action = 'index';
        $this->params = array();
    }

    public function map() {
        $uri = explode('/', $this->uri);
        if (empty($uri[0])) {
            $c = new Config('app');
            $this->controller = $c->default_controller;
        } else {
            $this->controller = array_shift($uri);
            if (!empty($uri[1]))
                $this->action = array_shift($uri);
            if(!empty($uri[2]))
                $this->params = $uri;
        }
    }

    public function getController() {
        return $this->controller;
    }

    public function getAction() {
        return $this->action;
    }

    public function getParams() {
        return $this->params;
    }
}

$uri = filter_var(rtrim(isset($_GET['url']) ? $_GET['url'] : null, '/'), FILTER_SANITIZE_URL);
$router = new Router($uri);
$router->map();