public function get($searchKey)
    {
        if (array_key_exists($searchKey, $this->configs)) {
            return $this->configs[$searchKey];
        } else {
            $arr = array();
            foreach ($this->configs as $k => $v) {
                if (strstr($k, $searchKey)) {
                    $arr[$k] = $v;
                }
            }

            return $arr;
        }
    }