Roller\MatchedRoute::getCallbackParameters PHP Method

    public function getCallbackParameters($callback)
    {
        if (is_array($callback)) {
            list($object, $method) = $callback;
            $r = is_object($object) ? new ReflectionObject($object) : new ReflectionClass($object);
            return $r->getMethod($method)->getParameters();
        } elseif (is_a($callback, 'Closure')) {
            $rf = new ReflectionFunction($callback);
            return $rf->getParameters();
        }
    }