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PHP微信支付开发实例
LiuBo的博客
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856 people have browsed it

1.开发环境
Thinkphp 3.2.3
微信:服务号,已认证
开发域名:http://test.paywechat.com (自定义的域名,外网不可访问)

2.需要相关文件和权限
微信支付需申请开通
微信公众平台开发者文档:http://mp.weixin.qq.com/wiki/home/index.html
微信支付开发者文档:https://pay.weixin.qq.com/wiki/doc/api/index.html
微信支付SDK下载地址:https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=11_1

3.开发
下载好微信支付PHP版本的SDK,文件目录为下图:

1.png

2.png

把微信支付SDK的Cert和Lib目录放入Thinkphp,目录为

 3.png

现在介绍微信支付授权目录问题,首先是微信支付开发配置里面的支付授权目录填写,

4.png


然后填写JS接口安全域。

5.png

最后设置网页授权

6.png


7.png


这些设置完,基本完成一半,注意设置的目录和我thinkphp里面的目录。

8.png

4.微信支付配置

9.png

把相关配置填写正确。

<?php  
/**
* 配置账号信息
*/
 
class WxPayConfig
{
 //=======【基本信息设置】=====================================
 //
 /**
 * TODO: 修改这里配置为您自己申请的商户信息
 * 微信公众号信息配置
 *
 * APPID:绑定支付的APPID(必须配置,开户邮件中可查看)
 *
 * MCHID:商户号(必须配置,开户邮件中可查看)
 *
 * KEY:商户支付密钥,参考开户邮件设置(必须配置,登录商户平台自行设置)
 * 设置地址:https://pay.weixin.qq.com/index.php/account/api_cert
 *
 * APPSECRET:公众帐号secert(仅JSAPI支付的时候需要配置, 登录公众平台,进入开发者中心可设置),
 * 获取地址: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 = '';
 
 //=======【证书路径设置】=====================================
 /**
 * TODO:设置商户证书路径
 * 证书路径,注意应该填写绝对路径(仅退款、撤销订单时需要,可登录商户平台下载,
 * API证书下载地址:https://pay.weixin.qq.com/index.php/account/api_cert,下载之前需要安装商户操作证书)
 * @var path
 */
 const SSLCERT_PATH = '../cert/apiclient_cert.pem';
 const SSLKEY_PATH = '../cert/apiclient_key.pem';
 
 //=======【curl代理设置】===================================
 /**
 * TODO:这里设置代理机器,只有需要代理的时候才设置,不需要代理,请设置为0.0.0.0和0
 * 本例程通过curl使用HTTP POST方法,此处可修改代理服务器,
 * 默认CURL_PROXY_HOST=0.0.0.0和CURL_PROXY_PORT=0,此时不开启代理(如有需要才设置)
 * @var unknown_type
 */
 const CURL_PROXY_HOST = "0.0.0.0";//"10.152.18.220";
 const CURL_PROXY_PORT = 0;//8080;
 
 //=======【上报信息配置】===================================
 /**
 * TODO:接口调用上报等级,默认紧错误上报(注意:上报超时间为【1s】,上报无论成败【永不抛出异常】,
 * 不会影响接口调用流程),开启上报之后,方便微信监控请求调用的质量,建议至少
 * 开启错误上报。
 * 上报等级,0.关闭上报; 1.仅错误出错上报; 2.全量上报
 * @var int
 */
 const REPORT_LEVENL = 1;
}

----------------------------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------------------------

<?php  
namespace Wechat\Controller;
use Think\Controller;
/**
 * 父类控制器,需要继承
 * @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' => '', // 填写你设定的key
 'encodingaeskey' => '', // 填写加密用的EncodingAESKey
 'appid' => '', // 填写高级调用功能的app id
 'appsecret' => '', // 填写高级调用功能的密钥
 'debug' => false,
 'logcallback' => ''
 );
 public $errCode = 40001;
 public $errMsg = "no access";
 
 /**
 * 获取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?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'];
 }
 
 /**
 * 发送客服消息
 * @param array $data 消息结构{"touser":"OPENID","msgtype":"news","news":{...}}
 */
 public function sendCustomMessage($data){
 $token = $this->getToken();
 if (empty($token)) return false;
 $url = 'https://api.weixin.qq.com/cgi-bin/message/custom/send?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;
 }
 
 /**
 * 发送模板消息
 * @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?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不支持中文转义的json结构
 * @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? (Object?)
 $parts [] = $str;
 }
 }
 $json = implode ( ',', $parts );
 if ($is_list)
 return '[' . $json . ']'; //Return numerical JSON
 return '{' . $json . '}'; //Return associative JSON
 }
 
 /**
 +----------------------------------------------------------
 * 生成随机字符串
 +----------------------------------------------------------
 * @param int $length 要生成的随机字符串长度
 * @param string $type 随机码类型:0,数字+大小写字母;1,数字;2,小写字母;3,大写字母;4,特殊字符;-1,数字+大小写字母+特殊字符
 +----------------------------------------------------------
 * @return string
 +----------------------------------------------------------
 */
 static public function randCode($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 请求
 * @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 请求
 * @param string $url
 * @param array $param
 * @param boolean $post_file 是否文件上传
 * @return string content
 */
 private function http_post($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;
 }
 }
}

--------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------

<?php  
namespace Wechat\Controller;
use Wechat\Controller\ParentController;
/**
 * 微信支付测试控制器
 * @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、获取用户openid
 $tools = new \JsApiPay();
 $openId = $tools->GetOpenid();
 //②、统一下单
 $input = new \WxPayUnifiedOrder();
 //商品描述
 $input->SetBody($this->_order_body);
 //附加数据,可以添加自己需要的数据,微信回异步回调时会附加这个数据
 $input->SetAttach('xxx');
 //商户订单号
 $out_trade_no = \WxPayConfig::MCHID.date("YmdHis");
 $input->SetOut_trade_no($out_trade_no);
 //总金额,订单总金额,只能为整数,单位为分
 $input->SetTotal_fee(1);
 //交易起始时间
 $input->SetTime_start(date("YmdHis"));
 //交易结束时间
 $input->SetTime_expire(date("YmdHis", time() + 600));
 //商品标记
 $input->SetGoods_tag($this->_order_goods_tag);
 //通知地址,接收微信支付异步通知回调地址 SITE_URL=http://test.paywechat.com/Charge
 $notify_url = SITE_URL.'/index.php/Test/notify.html';
 $input->SetNotify_url($notify_url);
 //交易类型
 $input->SetTrade_type("JSAPI");
 $input->SetOpenid($openId);
 $order = \WxPayApi::unifiedOrder($input);
 $jsApiParameters = $tools->GetJsApiParameters($order);
 //获取共享收货地址js函数参数
 $editAddress = $tools->GetEditAddressParameters();
 
 $this->assign('openId',$openId);
 $this->assign('jsApiParameters',$jsApiParameters);
 $this->assign('editAddress',$editAddress);
 $this->display();
 }
 
 /**
 * 异步通知回调方法
 */
 public function notify(){
 require_once ROOT_PATH."Api/lib/notify.php";
 $notify = new \PayNotifyCallBack();
 $notify->Handle(false);
 //这里的IsSuccess是我自定义的一个方法,后面我会贴出这个文件的代码,供参考。
 $is_success = $notify->IsSuccess();
 $bdata = $is_success['data'];
 //支付成功
 if($is_success['code'] == 1){
 $news = array(
  'touser' => $bdata['openid'],
  'msgtype' => 'news',
  'news' => array (
  'articles'=> array (
   array(
   'title' => '订单支付成功',
   'description' => "支付金额:{$bdata['total_fee']}\n".
   "微信订单号:{$bdata['transaction_id']}\n"
   'picurl' => '',
   'url' => ''
   )
 
  )
  )
 );
 //发送微信支付通知
 $this->sendCustomMessage($news);
 }else{//支付失败
 
 }
 }
 
 /**
 * 支付成功页面
 * 不可靠的回调
 */
 public function ajax_PaySuccess(){
 //订单号
 $out_trade_no = I('post.out_trade_no');
 //支付金额
 $total_fee = I('post.total_fee');
 /*相关逻辑处理*/
 
 }

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------贴上模板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>微信支付样例-支付</title>

 <script type="text/javascript">

 //调用微信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'){

 //处理取消支付的事件逻辑

 }else if(res.err_msg == "get_brand_wcpay_request:ok"){

 /*使用以上方式判断前端返回,微信团队郑重提示:

 res.err_msg将在用户支付成功后返回 ok,但并不保证它绝对可靠。

 这里可以使用Ajax提交到后台,处理一些日志,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();

 }

 }

 //获取共享地址

 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>该笔订单支付金额为<span style="color:#f00;font-size:50px">1分</span>钱</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文件代码,这里有在官方文件里新添加的一个自定义方法。

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'=>'');

 //查询订单

 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;

 }

 

 //重写回调处理函数

 public function NotifyProcess($data, &$msg)

 {

 \Log::DEBUG("call back:" . json_encode($data));

 $notfiyOutput = array();

 

 if(!array_key_exists("transaction_id", $data)){

 $msg = "输入参数不正确";

 $this->para['code'] = 0;

 $this->para['data'] = '';

 return false;

 }

 //查询订单,判断订单真实性

 if(!$this->Queryorder($data["transaction_id"])){

 $msg = "订单查询失败";

 $this->para['code'] = 0;

 $this->para['data'] = '';

 return false;

 }

 

 $this->para['code'] = 1;

 $this->para['data'] = $data;

 return true;

 }

 

 /**

 * 自定义方法 检测微信端是否回调成功方法

 * @return multitype:number string

 */

 public function IsSuccess(){

 return $this->para;

 }

}


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