This article mainly introduces the detailed tutorial of the process of implementing WeChat payment (jsapi payment) in ThinkPHP. Friends in need can refer to it.

I have written an article before about the process of implementing WeChat payment (jsapi payment) in PHP. , see the article for details: PHP implements WeChat payment (jsapi payment) process.

The environment at that time did not use a framework. It was implemented by directly creating a new directory under the directory pointed to by a domain name and then accessing the directory. However, there were still some problems when applied to the framework. In ThinkPHP, due to routing rules There is a discrepancy with the payment authorization directory, so an error will be reported. This article talks about the process of integrating WeChat payment in TP.

The SDK and documentation produced by Goose Factory are difficult to understand, and you will know it after using it. Shouldn’t the documentation and SDK be as simple and understandable as possible? Is it possible that only vigorous refactoring can show the superb technology of Goose Factory programmers? Well...did I expose my rookie attributes...In fact, the SDK is quite easy to use, but as I saw in the previous article, the payment completion callback function is really confusing.

For those who don’t want to be bypassed by the official and want to use WeChat payment in TP, you can take a look at the payment SDK suitable for TP which was restructured and streamlined by a master based on the official documents. I downloaded the source code and read it. Well, the code is written in an elegant and concise manner, and the process is simple and easy to understand. See the blog post for details: http://baijunyao.com/article/78

I still frowned, used the official SDK, and successfully implemented the payment. Let me share the process with you:

1.SDK download and modification

I won’t go into too much detail about this. If you don’t know, you can read my previous article: PHP implements WeChat payment (jsapi payment) process , which details which downloaded files need to be modified.

2. Public account settings

A. You still need to set the web page authorized domain name, this is nothing special;

B. Pay attention to this Payment authorization directory, using TP, many people use the rewrite mode (REWRITE mode) or use the pseudo-static mode while using the REWRITE mode. The generated link at this time is: http://serverName/Home/Blog/read /id/1 ;

If you are using PATHINFO mode, the generated link is: http://serverName/index.php/Home/Blog/read/id/1, such as under the Home module Use a method in the Blog controller to pay. The authorized directory for our payment should be http://serverName/Home/Blog/ or http://serverName/index.php/Home/Blog/, which is based on our own TP. Depends on the URL pattern set.

3. Payment process

(1) Unified order placement

The payment parameter configuration for order placement is basically different from the previous one. Change, the important thing to pay attention to is the payment callback verification link. Because it needs to be called multiple times, I encapsulated the parameter configuration directly in Application/Common/Common/function.php. My SDK is placed in the Api directory under the project root directory. , so the Vendor function is not used when introducing the SDK.

/** 
 * 微信支付 
 * @param string $openId  openid 
 * @param string $goods  商品名稱(chēng) 
 * @param string $attach  附加參數(shù),我們可以選擇傳遞一個(gè)參數(shù),比如訂單ID 
 * @param string $order_sn 訂單號(hào) 
 * @param string $total_fee 金額 
 */ 
function wxpay($openId,$goods,$order_sn,$total_fee,$attach){ 
 require_once APP_ROOT."/Api/wxpay/lib/WxPay.Api.php"; 
 require_once APP_ROOT."/Api/wxpay/payment/WxPay.JsApiPay.php"; 
 require_once APP_ROOT.'/Api/wxpay/payment/log.php'; 
 //初始化日志 
 $logHandler= new CLogFileHandler(APP_ROOT."/Api/wxpay/logs/".date('Y-m-d').'.log'); 
 $log = Log::Init($logHandler, 15); 
 $tools = new JsApiPay(); 
 if(empty($openId)) $openId = $tools->GetOpenid(); 
 $input = new WxPayUnifiedOrder(); 
 $input->SetBody($goods);     //商品名稱(chēng) 
 $input->SetAttach($attach);     //附加參數(shù),可填可不填,填寫(xiě)的話,里邊字符串不能出現(xiàn)空格 
 $input->SetOut_trade_no($order_sn);   //訂單號(hào) 
 $input->SetTotal_fee($total_fee);   //支付金額,單位:分 
 $input->SetTime_start(date("YmdHis"));  //支付發(fā)起時(shí)間 
 $input->SetTime_expire(date("YmdHis", time() + 600));//支付超時(shí) 
 $input->SetGoods_tag("test3"); 
 //$input->SetNotify_url("http://".$_SERVER['HTTP_HOST']."/payment.php"); //支付回調(diào)驗(yàn)證地址 
 $input->SetNotify_url("http://".$_SERVER['HTTP_HOST']."/payment.php/WexinApi/WeixinPay/notify"); 
 $input->SetTrade_type("JSAPI");    //支付類(lèi)型 
 $input->SetOpenid($openId);     //用戶(hù)openID 
 $order = WxPayApi::unifiedOrder($input); //統(tǒng)一下單 
 $jsApiParameters = $tools->GetJsApiParameters($order); 
 return $jsApiParameters; 
}

Attention, attention, here’s the key point:

The payment callback verification link must be verified without permission. If you access that link yourself, you still need to log in and register for verification. , don't try it, the link must be accessible, and there must be no series of parameters passed.

The best is simple and crude http://serverName/xxx.php. I re-wrote a special entry file payment for payment callback in the following directory, similar to index.php. .php, and its corresponding module (WexinApi), controller (WeixinPay) and method (notify) in the Application/ directory:

// 檢測(cè)PHP環(huán)境 
if(version_compare(PHP_VERSION,&#39;5.3.0&#39;,&#39;<&#39;)) die(&#39;require PHP > 5.3.0 !&#39;); 
// $_GET[&#39;m&#39;]=&#39;Admin&#39;; 
// 開(kāi)啟調(diào)試模式 建議開(kāi)發(fā)階段開(kāi)啟 部署階段注釋或者設(shè)為false 
define(&#39;APP_DEBUG&#39;,True); 
//指定模塊控制器和方法 
$_GET[&#39;m&#39;]=&#39;WexinApi&#39;; 
$_GET[&#39;c&#39;]=&#39;WeixinPay&#39;; 
$_GET[&#39;a&#39;]=&#39;notify&#39;; 
// 定義應(yīng)用目錄 
define(&#39;APP_PATH&#39;,&#39;./Application/&#39;); 
define("APP_ROOT",dirname(__FILE__)); 
// 引入ThinkPHP入口文件 
require &#39;./ThinkCore/ThinkCore.php&#39;; 
// 親^_^ 后面不需要任何代碼了 就是如此簡(jiǎn)單

Now visit http://serverName/payment.php, you will directly Enter http://serverName/payment.php/WexinApi/WeixinPay/notify, so that the callback verification link can be written as http://serverName/payment.php or http://serverName/payment.php/WexinApi/WeixinPay /notify .

(2) Initiating payment

is still very simple:

/** 
* 支付測(cè)試 
* 微信訪問(wèn):http://daoshi.sdxiaochengxu.com/payment.php/WexinApi/WeixinPay/pay 
*/ 
public function pay(){ 
 $order_sn = getrand_num(true); 
 $openId = ''; 
 $jsApiParameters = wxpay($openId,'江南極客',$order_sn,1); 
 $this->assign(array( 
  'data' => $jsApiParameters 
 )); 
 $this->display(); 
} 

<html> 
<head> 
 <meta http-equiv="content-type" content="text/html;charset=utf-8"/> 
 <meta name="viewport" content="width=device-width, initial-scale=1"/> 
 <title>小尤支付測(cè)試</title> 
 <script type="text/javascript"> 
 //調(diào)用微信JS api 支付 
 function jsApiCall() 
 { 
  var data={$data}; 
  WeixinJSBridge.invoke( 
   &#39;getBrandWCPayRequest&#39;, data, 
   function(res){ 
    WeixinJSBridge.log(res.err_msg); 
    //alert(&#39;err_code:&#39;+res.err_code+&#39;err_desc:&#39;+res.err_desc+&#39;err_msg:&#39;+res.err_msg); 
    //alert(res.err_code+res.err_desc+res.err_msg); 
    //alert(res); 
    if(res.err_msg == "get_brand_wcpay_request:ok"){ 
     alert("支付成功!"); 
     window.location.href="http://m.blog.csdn.net/article/details?id=72765676" rel="external nofollow" ; 
    }else if(res.err_msg == "get_brand_wcpay_request:cancel"){ 
     alert("用戶(hù)取消支付!"); 
    }else{ 
     alert("支付失敗!"); 
    } 
   } 
  ); 
 } 
 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> 
 <br/> 
 <font color="#9ACD32"><b>該筆訂單支付金額為<span style="color:#f00;font-size:50px">1分</span>錢(qián)</b></font><br/><br/> 
 <font color="#9ACD32"><b><span style="color:#f00;font-size:50px;margin-left:40%;">1分</span>錢(qián)也是愛(ài)</b></font><br/><br/> 
 <p align="center"> 
  <button style="width:210px; height:50px; border-radius: 15px;background-color:#FE6714; border:0px #FE6714 solid; cursor: pointer; color:white; font-size:16px;" type="button" onclick="callpay()" >果斷買(mǎi)買(mǎi)買(mǎi)^_^</button> 
 </p> 
</body> 
</html>

However, you should pay attention to the URL of the payment page, because the URL of the payment page must have many parameters. Just now Speaking of the REWRITE mode used in TP, your link is similar to [ http://serverName/Home/Blog/read/id/1 ], which may have more parameters. At this time, WeChat Pay will consider your payment The authorization directory is [http://serverName/Home/Blog/read/id/], but your real authorization directory is [http://serverName/Home/Blog/], so an error will be reported. The solution is to reconstruct the URL when entering the payment page and write it in normal mode, which is [http://serverName/Home/Blog/read?id=1], and that's it.

(3) Support success callback

Now that the payment is completed, you will enter the method corresponding to the previously written link, that is, [http:// serverName/payment.php/WexinApi/WeixinPay/notify]:

//微信支付回調(diào)驗(yàn)證 
public function notify(){ 
 $xml = $GLOBALS['HTTP_RAW_POST_DATA']; 
 // 這句file_put_contents是用來(lái)查看服務(wù)器返回的XML數(shù)據(jù) 測(cè)試完可以刪除了 
 file_put_contents('./Api/wxpay/logs/log.txt',$xml,FILE_APPEND); 
 //將服務(wù)器返回的XML數(shù)據(jù)轉(zhuǎn)化為數(shù)組 
 //$data = json_decode(json_encode(simplexml_load_string($xml,'SimpleXMLElement',LIBXML_NOCDATA)),true); 
 $data = xmlToArray($xml); 
 // 保存微信服務(wù)器返回的簽名sign 
 $data_sign = $data['sign']; 
 // sign不參與簽名算法 
 unset($data['sign']); 
 $sign = $this->makeSign($data); 
 // 判斷簽名是否正確 判斷支付狀態(tài) 
 if ( ($sign===$data_sign) && ($data['return_code']=='SUCCESS') && ($data['result_code']=='SUCCESS') ) { 
  $result = $data; 
  // 這句file_put_contents是用來(lái)查看服務(wù)器返回的XML數(shù)據(jù) 測(cè)試完可以刪除了 
  file_put_contents('./Api/wxpay/logs/log1.txt',$xml,FILE_APPEND); 
  //獲取服務(wù)器返回的數(shù)據(jù) 
  $order_sn = $data['out_trade_no']; //訂單單號(hào) 
  $order_id = $data['attach'];  //附加參數(shù),選擇傳遞訂單ID 
  $openid = $data['openid'];   //付款人openID 
  $total_fee = $data['total_fee']; //付款金額 
  //更新數(shù)據(jù)庫(kù) 
  $this->updateDB($order_id,$order_sn,$openid,$total_fee); 
 }else{ 
  $result = false; 
 } 
 // 返回狀態(tài)給微信服務(wù)器 
 if ($result) { 
  $str=&#39;<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>&#39;; 
 }else{ 
  $str=&#39;<xml><return_code><![CDATA[FAIL]]></return_code><return_msg><![CDATA[簽名失敗]]></return_msg></xml>&#39;; 
 } 
 echo $str; 
 return $result; 
}

For security reasons, the returned signature must be re-verified:

/** 
* 生成簽名 
* @return 簽名，本函數(shù)不覆蓋sign成員變量 
*/ 
protected function makeSign($data){ 
 //獲取微信支付秘鑰 
 require_once APP_ROOT."/Api/wxpay/lib/WxPay.Api.php"; 
 $key = \WxPayConfig::KEY; 
 // 去空 
 $data=array_filter($data); 
 //簽名步驟一：按字典序排序參數(shù) 
 ksort($data); 
 $string_a=http_build_query($data); 
 $string_a=urldecode($string_a); 
 //簽名步驟二：在string后加入KEY 
 //$config=$this->config; 
 $string_sign_temp=$string_a."&key=".$key; 
 //簽名步驟三：MD5加密 
 $sign = md5($string_sign_temp); 
 // 簽名步驟四：所有字符轉(zhuǎn)為大寫(xiě) 
 $result=strtoupper($sign); 
 return $result; 
}

至此，TP中微信支付也就搞定了。這是集成了官方的SDK實(shí)現(xiàn)的,如果不使用SDK,可以使用更簡(jiǎn)單的方法,見(jiàn):PHP實(shí)現(xiàn)微信支付(jsapi支付)和退款(無(wú)需集成支付SDK)

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