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Thinkphp implements WeChat public account payment interface

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Jun 08, 2018 am 11:13 AM

This article mainly introduces the Thinkphp WeChat public account payment interface in detail. Interested friends can refer to it.

The example of this article shares the Thinkphp WeChat public account payment interface for your reference. , the specific content is as follows

Step 1 First configure the two pictures in the folder to the same path except for changing the domain name to keep everything else consistent.

Step 2 Place the Weixinpay folder in \ThinkPHP\Library\Vendor Place the Weixinpay folder in this Vendor folder

Step 3 Place the php file WxJsAPIController.class.php in \Home\Controller

Step 4 Place the folder WxJsAPI in \Home\View

Step 5 Successfully call the WeChat official account payment function

jsApiCall.html

<!DOCTYPE html>
 <html>
 <head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name=&#39;viewport&#39; content=&#39;width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0&#39;/>
  <title>微信安全支付</title>
  <script type="text/javascript">
    //调用微信JS api 支付
    function jsApiCall()
    {
      WeixinJSBridge.invoke(
        &#39;getBrandWCPayRequest&#39;,
        <?php echo $jsApiParameters; ?>,
        function(res){
          WeixinJSBridge.log(res.err_msg);
          if(res.err_msg == "get_brand_wcpay_request:ok"){
          //alert(res.err_code+res.err_desc+res.err_msg);
            /*这里写如果支付成功的话执行什么操作*/
          }else{
            //返回跳转到订单详情页面
            alert(支付失败);
              
          }
        }
      );
    }
    function callpay()
    {
      if (typeof WeixinJSBridge == "undefined"){
        if( document.addEventListener ){
          document.addEventListener(&#39;WeixinJSBridgeReady&#39;, jsApiCall, false);
        }else if (document.attachEvent){
          document.attachEvent(&#39;WeixinJSBridgeReady&#39;, jsApiCall); 
          document.attachEvent(&#39;onWeixinJSBridgeReady&#39;, jsApiCall);
        }
      }else{
        jsApiCall();
      }
  
  
    }
 
  </script>
 </head>
 <body>
 <button style="width:210px; height:30px; background-color:#FE6714; border:0px #FE6714 solid; cursor: pointer; color:white; font-size:16px;" type="button" onclick="jsApiCall()" id="asd" >购买</button>

  </p>
 </body>
 </html>

WxJsAPIController.class.php

<?php

namespace Home\Controller;
use Think\Controller;

class WxJsAPIController extends Controller{
  public function _initialize()
  {
    //引入WxPayPubHelper
    vendor(&#39;Weixinpay.WxPayPubHelper&#39;);
  }  

  public function jsApiCall()
  {  

    //使用jsapi接口
    $jsApi = new \JsApi_pub();
    
    //=========步骤1：网页授权获取用户openid============
    //通过code获得openid
    //
    //

    if (!isset($_GET[&#39;code&#39;]))
    {
      //触发微信返回code码
      $rUrl=urlencode(C(&#39;WxConfig.JS_API_CALL_URL&#39;).&#39;/id/&#39;.$_GET[id]);  
      /*注意一下这个 id 是为了可以成功的传个 id值才这样写 如果你不需要的话也可以直接写成
  $rUrl=urlencode(C(&#39;WxConfig.JS_API_CALL_URL&#39;));

      $this->redirect(&#39;WxJsAPI/jsApiCall&#39;,array(&#39;id&#39; =>55),0, &#39;页面跳转中...&#39;);
      我是这样穿这个id过来的值得你们也可以自己改成其他的来传这个id 或是删除他不要
      */
       

      $url = $jsApi->createOauthUrlForCode($rUrl);
      // echo $url;exit();
      Header("Location: $url");
    }else
    {

      //获取code码，以获取openid
      $code = $_GET[&#39;code&#39;];
      $jsApi->setCode($code);
      $openid = $jsApi->getOpenId();//openid 这里是为了获取用户当前的openid 如果你有做微信登陆的话就可以无视他。
    }



    //=========步骤2：使用统一支付接口，获取prepay_id============
    //使用统一支付接口
    $unifiedOrder = new \UnifiedOrder_pub();

      /*此处做数据库的查询 这里操作数据库把产品信息显示出来*/

      /*此处做数据库的查询 这里操作数据库把产品信息显示出来*/


    //设置统一支付接口参数
    //设置必填参数
    //appid已填,商户无需重复填写
    //mch_id已填,商户无需重复填写
    //noncestr已填,商户无需重复填写
    //spbill_create_ip已填,商户无需重复填写
    //sign已填,商户无需重复填写
    //

    $NOTIFY_URL="你的域名/index.php/Home/WxJsAPI/notify";

    $unifiedOrder->setParameter("openid",$openid);//openid
    $unifiedOrder->setParameter("body",&#39;商品的名字&#39;);//商品描述
    $unifiedOrder->setParameter("out_trade_no",&#39;123456789&#39;);//商户订单号
    $unifiedOrder->setParameter("total_fee",1*100);//总金额 微信的钱1*100等于1
    $unifiedOrder->setParameter("notify_url",$NOTIFY_URL);//通知地址
  

    $unifiedOrder->setParameter("trade_type","JSAPI");//交易类型
    //非必填参数，商户可根据实际情况选填
    //$unifiedOrder->setParameter("sub_mch_id","XXXX");//子商户号
    //$unifiedOrder->setParameter("device_info","XXXX");//设备号
    //$unifiedOrder->setParameter("attach","XXXX");//附加数据
    //$unifiedOrder->setParameter("time_start","XXXX");//交易起始时间
    //$unifiedOrder->setParameter("time_expire","XXXX");//交易结束时间
    //$unifiedOrder->setParameter("goods_tag","XXXX");//商品标记
    //$unifiedOrder->setParameter("openid","XXXX");//用户标识
    //$unifiedOrder->setParameter("product_id","XXXX");//商品ID
  

    $prepay_id = $unifiedOrder->getPrepayId();

    // echo $prepay_id;exit();
    //=========步骤3：使用jsapi调起支付============
    $jsApi->setPrepayId($prepay_id);
    
    $jsApiParameters = $jsApi->getParameters();

    $WEB_HOST=&#39;你的域名&#39;;//填写的话 如 http://nicaicai.imwork.net 最后面不用加 /
    $this->assign(&#39;HOSTS&#39;,$WEB_HOST);
    $this->assign(&#39;jsApiParameters&#39;,$jsApiParameters);
    $this->display();
    //echo $jsApiParameters;

  }


  public function notify()
  {
    //使用通用通知接口
    $notify = new \Notify_pub();

    //存储微信的回调
    $xml = $GLOBALS[&#39;HTTP_RAW_POST_DATA&#39;];   

    $notify->saveData($xml);
    

    //验证签名，并回应微信。
    //对后台通知交互时，如果微信收到商户的应答不是成功或超时，微信认为通知失败，
    //微信会通过一定的策略（如30分钟共8次）定期重新发起通知，
    //尽可能提高通知的成功率，但微信不保证通知最终能成功。
    if($notify->checkSign() == FALSE){

      $notify->setReturnParameter("return_code","FAIL");//返回状态码
      $notify->setReturnParameter("return_msg","签名失败了啊");//返回信息
    }else{
      $notify->setReturnParameter("return_code","SUCCESS");//设置返回码
    }
    $returnXml = $notify->returnXml();
    echo $returnXml;
    
    //==商户根据实际情况设置相应的处理流程，此处仅作举例=======
    
    //以log文件形式记录回调信息
     // $log_ = new Log_();
    $log_name= __ROOT__."/Public/notify_url.log";//log文件路径
    
    
    if($notify->checkSign() == TRUE)
    {
      if ($notify->data["return_code"] == "FAIL") {


        //此处应该更新一下订单状态，商户自行增删操作
        log_result($log_name,"【通信出错】:\n".$xml."\n");
      }
      elseif($notify->data["result_code"] == "FAIL"){
    

        //此处应该更新一下订单状态，商户自行增删操作
        log_result($log_name,"【业务出错】:\n".$xml."\n");
      }
      else{ 

  /*查看支付成功的返回值请去 https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_1 */

  $xmlss=$notify->data["out_trade_no"];//订单号
  $total_fee=$notify->data[&#39;total_fee&#39;];//订单总金额，单位为分，详见支付金额
    

    /*更新订单状态这里写数据库的操作*/
   
  /*更新订单状态这里写数据库的操作*/


        //此处应该更新一下订单状态，商户自行增删操作
        log_result($log_name,"【支付成功】:\n".$xml."\n");
      }
    
      //商户自行增加处理流程,
      //例如：更新订单状态
      //例如：数据库操作
      //例如：推送支付完成信息
    }
  }

  // 打印log
  public function log_result($file,$word)
  {
    $fp = fopen($file,"a");
    flock($fp, LOCK_EX) ;
    fwrite($fp,"执行日期：".strftime("%Y-%m-%d-%H：%M：%S",time())."\n".$word."\n\n");
    flock($fp, LOCK_UN);
    fclose($fp);
  }

}


?>

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