protected function getSign($data)
    {
        if (is_null($this->userConfig->get('mch_key'))) {
            throw new InvalidArgumentException('Missing Config -- [mch_key]');
        }
        ksort($data);
        $string = md5($this->getSignContent($data) . '&key=' . $this->userConfig->get('mch_key'));
        return strtoupper($string);
    }
protected function getSign($data)
    {
        if (is_null($this->userConfig->get('mch_key'))) {
            throw new InvalidArgumentException('Missing Config -- [mch_key]');
        }
        ksort($data);
        $string = md5($this->getSignContent($data) . '&key=' . $this->userConfig->get('mch_key'));
        return strtoupper($string);
    }
protected function getSign ( $ data ) { if ( is_null ( $ this -> userConfig -> get ( 'mch_key' ) ) ) { throw new InvalidArgumentException ( 'Missing Config -- [mch_key]' ) ; } ksort ( $ data ) ; $ string = md5 ( $ this -> getSignContent ( $ data ) . '&key=' . $ this -> userConfig -> get ( 'mch_key' ) ) ; return strtoupper ( $ string ) ; }
生成内容签名
@param $data
@return string
生成内容签名