How to implement Alipay's APP payment function in php (code)

The content of this article is about how to implement Alipay's APP payment function (code) in PHP. The content is very detailed. Friends in need can refer to it. I hope it can help everyone.

Alipay web payment

1. Add an application to the Alipay open platform, obtain the appid, and sign a contract.

2. Set the Alipay open product platform as follows:

3. Configure the application public key of Alipay. (According to Alipay’s documentation)

4. Download the official sdk demo on the open platform.

5. Code:

 //支付宝
  include_once VENDOR_PATH . 'Alipay/aop/AopClient.php';
  include_once VENDOR_PATH . 'Alipay/aop/request/AlipayTradeAppPayRequest.php';
  $notify_url='https://www.www.com/app/pay/AlipayStep3Notify';
  $config = array(
   'appid' =>$this->appid,//
   'rsaPrivateKey' =>$this->rsaPrivateKey,//开发者私钥私钥
   'alipayrsaPublicKey'=>$this->alipayrsaPublicKey,//支付宝公钥
   'charset'=>strtolower('utf-8'),//编码
   'notify_url' =>$notify_url,//回调地址(支付宝支付成功后回调修改订单状态的地址)
   'payment_type' =>1,//(固定值)
   'seller_id' =>'',//收款商家账号
   'charset' => 'utf-8',//编码
   'sign_type' => 'RSA2',//签名方式
   'timestamp' =>date("Y-m-d H:i:s"),
   'version' =>"1.0",//固定值
   'url'  => 'https://openapi.alipay.com/gateway.do',//固定值
   'method' => 'alipay.trade.app.pay',//固定值
  );
   
     $aop = new \AopClient();
     $aop->gatewayUrl = "https://openapi.alipay.com/gateway.do";
     $aop->appId = $config['appid'];
     $aop->rsaPrivateKey = $config['rsaPrivateKey'];
     $aop->format = "json";
     $aop->charset = "UTF-8";
     $aop->signType = "RSA2";
     $aop->alipayrsaPublicKey=$config['alipayrsaPublicKey'];
    //实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.trade.app.pay
     $request = new \AlipayTradeAppPayRequest();
    //SDK已经封装掉了公共参数，这里只需要传入业务参数
     
     $bizcontent = json_encode([
       'body'=>'**',
       'subject'=>$subject,
       'out_trade_no'=> $order_sn,//此订单号为商户唯一订单号
       'total_amount'=>$totalprice,//保留两位小数
       'product_code'=>'QUICK_MSECURITY_PAY'
     ]);
     $request->setNotifyUrl($config['notify_url']);
     $request->setBizContent($bizcontent);
    //这里和普通的接口调用不同，使用的是sdkExecute
     $response = $aop->sdkExecute($request);
    //htmlspecialchars是为了输出到页面时防止被浏览器将关键参数html转义，实际打印到日志以及http传输不会有这个问题
    $datas=$response;//就是orderString 可以直接给客户端请求，无需再做处理。
    $this->arr['code']=0;
    $this->arr['msg']=$order_sn;
    $this->arr['info']=$datas;
    echo json_encode($this->arr);exit;

6. Payment callback notify_url.

include_once VENDOR_PATH . 'Alipay/aop/AopClient.php';
   $aop = new \AopClient();
   $config['alipayrsaPublicKey']=$this->$alipayrsaPublicKey;//公钥
   $aop->alipayrsaPublicKey = $config['alipayrsaPublicKey'];
   //此处验签方式必须与下单时的签名方式一致
   $flag = $aop->rsaCheckV1($_POST, NULL, "RSA2");
   //验签通过后再实现业务逻辑，比如修改订单表中的支付状态。
   /**
   ①验签通过后核实如下参数out_trade_no、total_amount、seller_id
   ②修改订单表
    **/
   $out_trade_no = I('post.out_trade_no'); //商户订单号

Then modify the corresponding data in the database.

7. Order query interface:

include_once VENDOR_PATH . 'Alipay/aop/SignData.php';
  include_once VENDOR_PATH . 'Alipay/aop/AopClient.php';
  include_once VENDOR_PATH . 'Alipay/aop/request/AlipayTradeQueryRequest.php';
  $config = array(
   'appid' =>$this->appid,//
   'rsaPrivateKey' =>$this->rsaPrivateKey,//开发者私钥私钥
   'alipayrsaPublicKey'=>$this->alipayrsaPublicKey,//支付宝公钥
   'charset'=>strtolower('utf-8'),//编码
   'notify_url' =>'',//回调地址(支付宝支付成功后回调修改订单状态的地址)
   'payment_type' =>1,//(固定值)
   'seller_id' =>'',//收款商家账号
   'charset' => 'utf-8',//编码
   'sign_type' => 'RSA',//签名方式
   'timestamp' =>date("Y-m-d H:i:s"),
   'version' =>"1.0",//固定值
   'url'  => 'https://openapi.alipay.com/gateway.do',//固定值
   'method' => 'alipay.trade.query',//固定值
  );
   
     $aop = new \AopClient();
     $aop->gatewayUrl = "https://openapi.alipay.com/gateway.do";
     $aop->appId = $config['appid'];
     $aop->rsaPrivateKey = $config['rsaPrivateKey'];
     $aop->format = "json";
     $aop->charset = "UTF-8";
     $aop->signType = "RSA2";
     $aop->method = $config['method'];
     $aop->apiVersion = '1.0';
     $aop->alipayrsaPublicKey=$config['alipayrsaPublicKey'];
    //实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.trade.query
     $request = new \AlipayTradeQueryRequest();
 
     $bizcontent = json_encode([
       'out_trade_no'=>$order_sn,
       'trade_no'=>''
     ]);
     
     $request->setBizContent($bizcontent);
    
     $response = $aop->execute($request);
 
     $responseNode = str_replace(".", "_", $request->getApiMethodName()) . "_response";
     $resultCode = $response->$responseNode->code;
     if(!empty($resultCode)&&$resultCode == 10000){
  
       $this->arr['code']=0;
       $this->arr['msg']='success';
       echo json_encode($this->arr);exit;
    
     } else {
       $this->arr['code']=100001;
       $this->arr['msg']='未查询到订单信息';
        echo json_encode($this->arr);exit;
     
 }

Related recommendations:

php Alipay interface usage analysis, php Alipay usage

thinkphp Alipay, web scan code payment

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