PHP WeChat payment development example, PHP payment example

PHP WeChat payment development process is shared with everyone for your reference. The specific content is as follows

1. Development environment
Thinkphp 3.2.3
WeChat: Service account, certified
Development domain name: http://test.paywechat.com (customized domain name, not accessible from the external network)

2. Relevant files and permissions are required
WeChat payment needs to be activated
WeChat public platform developer documentation: http://mp.weixin.qq.com/wiki/home/index.html
WeChat Pay developer documentation: https://pay.weixin.qq.com/wiki/doc/api/index.html
WeChat payment SDK download address: https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=11_1

3. Development
Download the PHP version of WeChat Payment SDK. The file directory is as shown below:

Put the Cert and Lib directories of WeChat Payment SDK into Thinkphp, the directory is

Now we will introduce the issue of WeChat payment authorization directory. The first step is to fill in the payment authorization directory in WeChat payment development configuration.

Then fill in the JS interface security domain.

Finally set web authorization

After these settings are completed, it is almost half complete. Pay attention to the set directory and the directory in my thinkphp.

4. WeChat payment configuration

Fill in the relevant configuration correctly.

/**
* 配置賬號信息
*/

class WxPayConfig
{
 //=======【基本信息設(shè)置】=====================================
 //
 /**
 * TODO: 修改這里配置為您自己申請的商戶信息
 * 微信公眾號信息配置
 * 
 * APPID：綁定支付的APPID（必須配置，開戶郵件中可查看）
 * 
 * MCHID：商戶號（必須配置，開戶郵件中可查看）
 * 
 * KEY：商戶支付密鑰，參考開戶郵件設(shè)置（必須配置，登錄商戶平臺自行設(shè)置）
 * 設(shè)置地址：https://pay.weixin.qq.com/index.php/account/api_cert
 * 
 * APPSECRET：公眾帳號secert（僅JSAPI支付的時候需要配置， 登錄公眾平臺，進入開發(fā)者中心可設(shè)置），
 * 獲取地址：https://mp.weixin.qq.com/advanced/advanced?action=dev&t=advanced/dev&token=2005451881&lang=zh_CN
 * @var string
 */
 const APPID = '';
 const MCHID = '';
 const KEY = '';
 const APPSECRET = '';

 //=======【證書路徑設(shè)置】=====================================
 /**
 * TODO：設(shè)置商戶證書路徑
 * 證書路徑,注意應(yīng)該填寫絕對路徑（僅退款、撤銷訂單時需要，可登錄商戶平臺下載，
 * API證書下載地址：https://pay.weixin.qq.com/index.php/account/api_cert，下載之前需要安裝商戶操作證書）
 * @var path
 */
 const SSLCERT_PATH = '../cert/apiclient_cert.pem';
 const SSLKEY_PATH = '../cert/apiclient_key.pem';

 //=======【curl代理設(shè)置】===================================
 /**
 * TODO：這里設(shè)置代理機器，只有需要代理的時候才設(shè)置，不需要代理，請設(shè)置為0.0.0.0和0
 * 本例程通過curl使用HTTP POST方法，此處可修改代理服務(wù)器，
 * 默認CURL_PROXY_HOST=0.0.0.0和CURL_PROXY_PORT=0，此時不開啟代理（如有需要才設(shè)置）
 * @var unknown_type
 */
 const CURL_PROXY_HOST = "0.0.0.0";//"10.152.18.220";
 const CURL_PROXY_PORT = 0;//8080;

 //=======【上報信息配置】===================================
 /**
 * TODO：接口調(diào)用上報等級，默認緊錯誤上報（注意：上報超時間為【1s】，上報無論成敗【永不拋出異?！浚? * 不會影響接口調(diào)用流程），開啟上報之后，方便微信監(jiān)控請求調(diào)用的質(zhì)量，建議至少
 * 開啟錯誤上報。
 * 上報等級，0.關(guān)閉上報; 1.僅錯誤出錯上報; 2.全量上報
 * @var int
 */
 const REPORT_LEVENL = 1;
}

Start posting the code now:

namespace Wechat\Controller;
use Think\Controller;
/**
 * 父類控制器，需要繼承
 * @file ParentController.class.php
 * @author Gary <lizhiyong2204@sina.com>
 * @date 2015年8月4日
 * @todu
 */
class ParentController extends Controller { 
 protected $options = array (
 'token' => '', // 填寫你設(shè)定的key
 'encodingaeskey' => '', // 填寫加密用的EncodingAESKey
 'appid' => '', // 填寫高級調(diào)用功能的app id
 'appsecret' => '', // 填寫高級調(diào)用功能的密鑰
 'debug' => false,
 'logcallback' => ''
 ); 
 public $errCode = 40001; 
 public $errMsg = "no access"; 

 /**
 * 獲取access_token
 * @return mixed|boolean|unknown
 */
 public function getToken(){
 $cache_token = S('exp_wechat_pay_token');
 if(!empty($cache_token)){
 return $cache_token;
 }
 $url = 'https://api.weixin.qq.com/cgi-bin/token&#63;grant_type=client_credential&appid=%s&secret=%s';
 $url = sprintf($url,$this->options['appid'],$this->options['appsecret']); 
 $result = $this->http_get($url);
 $result = json_decode($result,true); 
 if(empty($result)){
 return false;
 } 
 S('exp_wechat_pay_token',$result['access_token'],array('type'=>'file','expire'=>3600));
 return $result['access_token'];
 }

 /**
 * 發(fā)送客服消息
 * @param array $data 消息結(jié)構(gòu){"touser":"OPENID","msgtype":"news","news":{...}}
 */
 public function sendCustomMessage($data){
 $token = $this->getToken();
 if (empty($token)) return false; 
 $url = 'https://api.weixin.qq.com/cgi-bin/message/custom/send&#63;access_token=%s';
 $url = sprintf($url,$token);
 $result = $this->http_post($url,self::json_encode($data));
 if ($result)
 {
 $json = json_decode($result,true);
 if (!$json || !empty($json['errcode'])) {
 $this->errCode = $json['errcode'];
 $this->errMsg = $json['errmsg'];
 return false;
 }
 return $json;
 }
 return false;
 }

 /**
 * 發(fā)送模板消息
 * @param unknown $data
 * @return boolean|unknown
 */
 public function sendTemplateMessage($data){
 $token = $this->getToken();
 if (empty($token)) return false;
 $url = "https://api.weixin.qq.com/cgi-bin/message/template/send&#63;access_token=%s";
 $url = sprintf($url,$token);
 $result = $this->http_post($url,self::json_encode($data));
 if ($result)
 {
 $json = json_decode($result,true);
 if (!$json || !empty($json['errcode'])) {
 $this->errCode = $json['errcode'];
 $this->errMsg = $json['errmsg'];
 return false;
 }
 return $json;
 }
 return false;
 }


 public function getFileCache($name){
 return S($name);
 }

 /**
 * 微信api不支持中文轉(zhuǎn)義的json結(jié)構(gòu)
 * @param array $arr
 */
 static function json_encode($arr) {
 $parts = array ();
 $is_list = false;
 //Find out if the given array is a numerical array
 $keys = array_keys ( $arr );
 $max_length = count ( $arr ) - 1;
 if (($keys [0] === 0) && ($keys [$max_length] === $max_length )) { //See if the first key is 0 and last key is length - 1
 $is_list = true;
 for($i = 0; $i < count ( $keys ); $i ++) { //See if each key correspondes to its position
 if ($i != $keys [$i]) { //A key fails at position check.
  $is_list = false; //It is an associative array.
  break;
 }
 }
 }
 foreach ( $arr as $key => $value ) {
 if (is_array ( $value )) { //Custom handling for arrays
 if ($is_list)
  $parts [] = self::json_encode ( $value ); /* :RECURSION: */
 else
  $parts [] = '"' . $key . '":' . self::json_encode ( $value ); /* :RECURSION: */
 } else {
 $str = '';
 if (! $is_list)
  $str = '"' . $key . '":';
 //Custom handling for multiple data types
 if (!is_string ( $value ) && is_numeric ( $value ) && $value<2000000000)
  $str .= $value; //Numbers
 elseif ($value === false)
 $str .= 'false'; //The booleans
 elseif ($value === true)
 $str .= 'true';
 else
  $str .= '"' . addslashes ( $value ) . '"'; //All other things
 // :TODO: Is there any more datatype we should be in the lookout for&#63; (Object&#63;)
 $parts [] = $str;
 }
 }
 $json = implode ( ',', $parts );
 if ($is_list)
 return '[' . $json . ']'; //Return numerical JSON
 return '{' . $json . '}'; //Return associative JSON
 }

 /**
 +----------------------------------------------------------
 * 生成隨機字符串
 +----------------------------------------------------------
 * @param int $length 要生成的隨機字符串長度
 * @param string $type 隨機碼類型：0，數(shù)字+大小寫字母；1，數(shù)字；2，小寫字母；3，大寫字母；4，特殊字符；-1，數(shù)字+大小寫字母+特殊字符
 +----------------------------------------------------------
 * @return string
 +----------------------------------------------------------
 */
 static public function randCode($length = 5, $type = 2){
 $arr = array(1 => "0123456789", 2 => "abcdefghijklmnopqrstuvwxyz", 3 => "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 4 => "~@#$%^&*(){}[]|");
 if ($type == 0) {
 array_pop($arr);
 $string = implode("", $arr);
 } elseif ($type == "-1") {
 $string = implode("", $arr);
 } else {
 $string = $arr[$type];
 }
 $count = strlen($string) - 1;
 $code = '';
 for ($i = 0; $i < $length; $i++) {
 $code .= $string[rand(0, $count)];
 }
 return $code;
 } 


 /**
 * GET 請求
 * @param string $url
 */
 private function http_get($url){
 $oCurl = curl_init();
 if(stripos($url,"https://")!==FALSE){
 curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);
 curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);
 curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1
 }
 curl_setopt($oCurl, CURLOPT_URL, $url);
 curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );
 $sContent = curl_exec($oCurl);
 $aStatus = curl_getinfo($oCurl);
 curl_close($oCurl);
 if(intval($aStatus["http_code"])==200){
 return $sContent;
 }else{
 return false;
 }
 }

 /**
 * POST 請求
 * @param string $url
 * @param array $param
 * @param boolean $post_file 是否文件上傳
 * @return string content
 */
 private function http_post($url,$param,$post_file=false){
 $oCurl = curl_init();
 if(stripos($url,"https://")!==FALSE){
 curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);
 curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, false);
 curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1
 }
 if (is_string($param) || $post_file) {
 $strPOST = $param;
 } else {
 $aPOST = array();
 foreach($param as $key=>$val){
 $aPOST[] = $key."=".urlencode($val);
 }
 $strPOST = join("&", $aPOST);
 }
 curl_setopt($oCurl, CURLOPT_URL, $url);
 curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );
 curl_setopt($oCurl, CURLOPT_POST,true);
 curl_setopt($oCurl, CURLOPT_POSTFIELDS,$strPOST);
 $sContent = curl_exec($oCurl);
 $aStatus = curl_getinfo($oCurl);
 curl_close($oCurl);
 if(intval($aStatus["http_code"])==200){
 return $sContent;
 }else{
 return false;
 }
 }
}

namespace Wechat\Controller;
use Wechat\Controller\ParentController;
/**
 * 微信支付測試控制器
 * @file TestController.class.php
 * @author Gary <lizhiyong2204@sina.com>
 * @date 2015年8月4日
 * @todu
 */
class TestController extends ParentController {
 private $_order_body = 'xxx';
 private $_order_goods_tag = 'xxx';
 public function __construct(){
 parent::__construct();
 require_once ROOT_PATH."Api/lib/WxPay.Api.php";
 require_once ROOT_PATH."Api/lib/WxPay.JsApiPay.php";
 }

 public function index(){
 //①、獲取用戶openid
 $tools = new \JsApiPay();
 $openId = $tools->GetOpenid(); 
 //②、統(tǒng)一下單
 $input = new \WxPayUnifiedOrder(); 
 //商品描述
 $input->SetBody($this->_order_body);
 //附加數(shù)據(jù)，可以添加自己需要的數(shù)據(jù)，微信回異步回調(diào)時會附加這個數(shù)據(jù)
 $input->SetAttach('xxx');
 //商戶訂單號
 $out_trade_no = \WxPayConfig::MCHID.date("YmdHis");
 $input->SetOut_trade_no($out_trade_no);
 //總金額,訂單總金額，只能為整數(shù),單位為分 
 $input->SetTotal_fee(1);
 //交易起始時間
 $input->SetTime_start(date("YmdHis"));
 //交易結(jié)束時間
 $input->SetTime_expire(date("YmdHis", time() + 600));
 //商品標記
 $input->SetGoods_tag($this->_order_goods_tag);
 //通知地址,接收微信支付異步通知回調(diào)地址 SITE_URL=http://test.paywechat.com/Charge
 $notify_url = SITE_URL.'/index.php/Test/notify.html';
 $input->SetNotify_url($notify_url);
 //交易類型
 $input->SetTrade_type("JSAPI");
 $input->SetOpenid($openId);
 $order = \WxPayApi::unifiedOrder($input);
 $jsApiParameters = $tools->GetJsApiParameters($order);
 //獲取共享收貨地址js函數(shù)參數(shù)
 $editAddress = $tools->GetEditAddressParameters();

 $this->assign('openId',$openId);
 $this->assign('jsApiParameters',$jsApiParameters);
 $this->assign('editAddress',$editAddress);
 $this->display(); 
 }

 /**
 * 異步通知回調(diào)方法
 */
 public function notify(){
 require_once ROOT_PATH."Api/lib/notify.php";
 $notify = new \PayNotifyCallBack();
 $notify->Handle(false);
 //這里的IsSuccess是我自定義的一個方法，后面我會貼出這個文件的代碼，供參考。
 $is_success = $notify->IsSuccess(); 
 $bdata = $is_success['data']; 
 //支付成功
 if($is_success['code'] == 1){ 
 $news = array(
  'touser' => $bdata['openid'],
  'msgtype' => 'news',
  'news' => array (
  'articles'=> array (
   array(
   'title' => '訂單支付成功',
   'description' => "支付金額：{$bdata['total_fee']}\n".
   "微信訂單號：{$bdata['transaction_id']}\n"
   'picurl' => '',
   'url' => '' 
   )

  )
  )
 );
 //發(fā)送微信支付通知
 $this->sendCustomMessage($news); 
 }else{//支付失敗

 }
 }

 /**
 * 支付成功頁面
 * 不可靠的回調(diào)
 */
 public function ajax_PaySuccess(){
 //訂單號
 $out_trade_no = I('post.out_trade_no');
 //支付金額
 $total_fee = I('post.total_fee');
 /*相關(guān)邏輯處理*/

 }

Paste template HTML

<html>
<head>
 <meta http-equiv="content-type" content="text/html;charset=utf-8"/>
 <meta name="viewport" content="width=device-width, initial-scale=1"/> 
 <title>微信支付樣例-支付</title>
 <script type="text/javascript">
 //調(diào)用微信JS api 支付
 function jsApiCall()
 {
 WeixinJSBridge.invoke(
 'getBrandWCPayRequest',
 {$jsApiParameters},
 function(res){
 WeixinJSBridge.log(res.err_msg);
 //取消支付
 if(res.err_msg == 'get_brand_wcpay_request:cancel'){
 //處理取消支付的事件邏輯
 }else if(res.err_msg == "get_brand_wcpay_request：ok"){
 /*使用以上方式判斷前端返回,微信團隊鄭重提示：
 res.err_msg將在用戶支付成功后返回 ok，但并不保證它絕對可靠。
 這里可以使用Ajax提交到后臺，處理一些日志，如Test控制器里面的ajax_PaySuccess方法。
 */
 }
 alert(res.err_code+res.err_desc+res.err_msg);
 }
 );
 }

 function callpay()
 {
 if (typeof WeixinJSBridge == "undefined"){
 if( document.addEventListener ){
 document.addEventListener('WeixinJSBridgeReady', jsApiCall, false);
 }else if (document.attachEvent){
 document.attachEvent('WeixinJSBridgeReady', jsApiCall); 
 document.attachEvent('onWeixinJSBridgeReady', jsApiCall);
 }
 }else{
 jsApiCall();
 }
 }
 //獲取共享地址
 function editAddress()
 {
 WeixinJSBridge.invoke(
 'editAddress',
 {$editAddress},
 function(res){
 var value1 = res.proviceFirstStageName;
 var value2 = res.addressCitySecondStageName;
 var value3 = res.addressCountiesThirdStageName;
 var value4 = res.addressDetailInfo;
 var tel = res.telNumber; 
 alert(value1 + value2 + value3 + value4 + ":" + tel);
 }
 );
 }

 window.onload = function(){
 if (typeof WeixinJSBridge == "undefined"){
 if( document.addEventListener ){
 document.addEventListener('WeixinJSBridgeReady', editAddress, false);
 }else if (document.attachEvent){
 document.attachEvent('WeixinJSBridgeReady', editAddress); 
 document.attachEvent('onWeixinJSBridgeReady', editAddress);
 }
 }else{
 editAddress();
 }
 };

 </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</b></font><br/><br/>
 <div 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()" >立即支付</button>
 </div>
</body>
</html>

Notify.php file code, here is a custom method newly added in the official file.

require_once ROOT_PATH."Api/lib/WxPay.Api.php";
require_once ROOT_PATH.'Api/lib/WxPay.Notify.php';
require_once ROOT_PATH.'Api/lib/log.php';

//初始化日志
$logHandler= new \CLogFileHandler(ROOT_PATH."/logs/".date('Y-m-d').'.log');
$log = \Log::Init($logHandler, 15);

class PayNotifyCallBack extends WxPayNotify
{
 protected $para = array('code'=>0,'data'=>'');
 //查詢訂單
 public function Queryorder($transaction_id)
 {
 $input = new \WxPayOrderQuery();
 $input->SetTransaction_id($transaction_id);
 $result = \WxPayApi::orderQuery($input);
 \Log::DEBUG("query:" . json_encode($result));
 if(array_key_exists("return_code", $result)
 && array_key_exists("result_code", $result)
 && $result["return_code"] == "SUCCESS"
 && $result["result_code"] == "SUCCESS")
 {
 return true;
 }
 $this->para['code'] = 0;
 $this->para['data'] = '';
 return false;
 }

 //重寫回調(diào)處理函數(shù)
 public function NotifyProcess($data, &$msg)
 {
 \Log::DEBUG("call back:" . json_encode($data));
 $notfiyOutput = array();

 if(!array_key_exists("transaction_id", $data)){
 $msg = "輸入?yún)?shù)不正確";
 $this->para['code'] = 0;
 $this->para['data'] = '';
 return false;
 }
 //查詢訂單，判斷訂單真實性
 if(!$this->Queryorder($data["transaction_id"])){
 $msg = "訂單查詢失敗";
 $this->para['code'] = 0;
 $this->para['data'] = '';
 return false;
 }

 $this->para['code'] = 1;
 $this->para['data'] = $data;
 return true;
 }

 /**
 * 自定義方法 檢測微信端是否回調(diào)成功方法
 * @return multitype:number string
 */
 public function IsSuccess(){
 return $this->para;
 }
}

This is basically complete, you can open it on WeChat http://test.paywechat.com/Charge/index.php/Test/index/
In my environment, the HTTP server does not rewrite the URL. WeChat payment continues to be explored. There may be problems or deficiencies in some places. I hope everyone can understand and learn from each other.

The above is all the content of PHP WeChat payment development. I hope it will be helpful to everyone's learning, and I also hope everyone will support Bangkejia.