protected function getParamOptions($checkParam)
    {
        if (isset($this->allowedParams[$checkParam])) {
            return array('param' => $checkParam, 'options' => $this->allowedParams[$checkParam]);
        } else {
            foreach ($this->allowedParams as $param => $options) {
                if (! empty($options['alias']) && in_array($checkParam, (array) $options['alias'])) {
                    return compact('param', 'options');
                }
            }
        }

        return false;
    }