overtrue / wechat

            throw new Exception($transaction['err_code'].': '.$transaction['err_code_des']);

        }

        if (isset($transaction['return_code']) &&

            $transaction['return_code'] === 'FAIL') {

            throw new Exception($transaction['return_code'].': '.$transaction['return_msg']);

        }

        return $transactionInfo = new Bag($transaction);

    }

        }

        $refundOrder = XML::parse($response);

        if (isset($refundOrder['return_code']) &&

            $refundOrder['return_code'] === 'FAIL') {

            throw new Exception($refundOrder['return_code'].': '.$refundOrder['return_msg']);

        }

        //返回签名数据校验

        if (empty($refundOrder) || empty($refundOrder['sign'])) {

            throw new Exception($refundOrder['err_code'].': '.$refundOrder['err_code_des']);

        }

        if (isset($refundOrder['return_code']) &&

            $refundOrder['return_code'] === 'FAIL') {

            throw new Exception($refundOrder['return_code'].': '.$refundOrder['return_msg']);

        }

        return $this->refundInfo = $refundOrder;

    }

            throw new Exception($unifiedOrder['err_code'].': '.$unifiedOrder['err_code_des']);

        }

        if (isset($unifiedOrder['return_code']) &&

            $unifiedOrder['return_code'] === 'FAIL') {

            throw new Exception($unifiedOrder['return_code'].': '.$unifiedOrder['return_msg']);

        }

        return $this->unifiedOrder = $unifiedOrder;

    }