$params = explode('/', $_SERVER['REQUEST_URI']);

    foreach($params as $key => $param) {
        if (empty($param)) {
            unset($params[$key]);
            continue;
        }

        if (file_exists('application/class/'.$param.'.php')) {
            $controller = new $param($db);
            unset($params[$key]);
        }

        if (isset($controller)) {
            if (method_exists($controller, $param)) {
                $action = $param;
                unset($params[$key]);
            }
        }
    }