protected function verifySign(array $retData)
    {
        $retSign = $retData['sign'];
        $values = ArrayUtil::removeKeys($retData, ['sign', 'sign_type']);

        $values = ArrayUtil::paraFilter($values);

        $values = ArrayUtil::arraySort($values);

        $signStr = ArrayUtil::createLinkstring($values);

        $signStr .= '&key=' . $this->config->md5Key;
        switch ($this->config->signType) {
            case 'MD5':
                $sign = md5($signStr);
                break;
            case 'HMAC-SHA256':
                $sign = hash_hmac('sha256', $signStr, $this->config->md5Key);
                break;
            default:
                $sign = '';
        }

        return strtoupper($sign) === $retSign;
    }
protected function verifySign(array $retData)
    {
        $retSign = $retData['sign'];
        $values = ArrayUtil::removeKeys($retData, ['sign', 'sign_type']);

        $values = ArrayUtil::paraFilter($values);

        $values = ArrayUtil::arraySort($values);

        $signStr = ArrayUtil::createLinkstring($values);

        $signStr .= '&key=' . $this->config->md5Key;
        switch ($this->config->signType) {
            case 'MD5':
                $sign = md5($signStr);
                break;
            case 'HMAC-SHA256':
                $sign = hash_hmac('sha256', $signStr, $this->config->md5Key);
                break;
            default:
                $sign = '';
        }

        return strtoupper($sign) === $retSign;
    }
protected function verifySign ( array $ retData ) { $ retSign = $ retData [ 'sign' ] ; $ values = ArrayUtil :: removeKeys ( $ retData , [ 'sign' , 'sign_type' ] ) ; $ values = ArrayUtil :: paraFilter ( $ values ) ; $ values = ArrayUtil :: arraySort ( $ values ) ; $ signStr = ArrayUtil :: createLinkstring ( $ values ) ; $ signStr .= '&key=' . $ this -> config -> md5Key ; switch ( $ this -> config -> signType ) { case 'MD5' : $ sign = md5 ( $ signStr ) ; break ; case 'HMAC-SHA256' : $ sign = hash_hmac ( 'sha256' , $ signStr , $ this -> config -> md5Key ) ; break ; default : $ sign = '' ; } return strtoupper ( $ sign ) === $ retSign ; }
检查微信返回的数据是否被篡改过
@param array $retData
@return boolean
@author helei
检查微信返回的数据是否被篡改过