微信订单退款接口-蒲公英云

微信订单退款接口

短命女 2023-03-05 12:36 131阅读 0赞

//退款
    public static function tui($transaction_id,$tui_no,$order_money,$money){ 
        $param = [
            'appid' => Config::get('app.appid'),
            'mch_id' => Config::get('app.mch_id'), //商户id
            'nonce_str' => self::getRand(20, true), //随机字符串
            'transaction_id'=>$transaction_id, //微信订单号
            'out_refund_no' => $tui_no, //退款商家订单号
            'total_fee' => $order_money * 100, //订单金额
            'refund_fee' => $money * 100, //退款金额
            'notify_url' => Config::get('app.url').'/api/pay/quxiaosuccess'
        ];
        $sign = self::makeSign($param, Config::get('app.mch_key'));
        $param['sign'] = $sign;
        try { 
            //将数组转换成xml数据
            $xml = self::ToXmls($param);
        } catch (\Exception $e) { 
            return $e->getMessage();
        }
        $url = "https://api.mch.weixin.qq.com/secapi/pay/refund";
        //请求微信支付接口
        $getXml = self::curl_posts($url, $xml);
        //将微信返回值转换成数组
        $getArr = self::FromXmls($getXml);
        if ($getArr[1]['return_code'] == 'SUCCESS' && $getArr[1]['result_code'] == 'SUCCESS') { 
            //请求成功
            $data['code'] = 'success';
        } else if ($getArr['return_code'] == 'SUCCESS' && $getArr['result_code'] == 'FAIL') { 
            $data['code'] = $getArr['err_code'];
            $data['msg'] = $getArr['err_code_des'];
        } else { 
            $data['code'] = $getArr['return_code'];
            $data['msg'] = $getArr['return_msg'];
        }
        return $data;
    }
//获取随机字符串
    public static function getRand($length = 6, $isAll = false)
    { 
        if ($isAll) { 
            $chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
        } else { 
            $chars = '0123456789';
        }
        $randStr = '';
        for ($i = 0; $i < $length; $i++) { 
            $randStr .= $chars[mt_rand(0, strlen($chars) - 1)];
        }
        return $randStr;
    }
 //生成签名
    public static function makeSign($param, $key)
    { 
        ksort($param);
        $string = self::toUrlParams($param);
        $string = $string . '&key=' . $key;
        $string = md5($string);
        $result = strtoupper($string);
        return $result;
    }
    //将数组转换成xml数据
    public static function ToXmls($data)
    { 
        if (!is_array($data)
            || count($data) <= 0) { 
            throw new Exception("数组数据异常！");
        }
        $xml = "<xml>";
        foreach ($data as $key => $val) { 
            $xml .= "<" . $key . ">" . $val . "</" . $key . ">";
        }
        $xml .= "</xml>";
        return $xml;
    }
    private function curl_posts($url,$post_data)
    { 
        if (is_array($post_data)) { 
            $postData = http_build_query($post_data);
        }
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($ch,CURLOPT_SSLCERT, public_path().Config::get('app.cert'));
        curl_setopt($ch,CURLOPT_SSLKEY,public_path().Config::get('app.key')); //注意证书路径一定是绝对路径或相对路径，我搞成链接了，坑了我好长时间
        $data = curl_exec($ch);
        curl_close($ch);
        return $data;
    }
    //将xml转换成数组
    public static function FromXmls($xml)
    { 
        if (!$xml) { 
            return ['false', 'xml数据异常！'];
        }
        libxml_disable_entity_loader(true);
        $data = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
        return ['true', $data];
    }