微信小程序支付PHP代码

本文实例为大家分享了微信小程序支付PHP具体代码，供大家参考，具体内容如下

服务器端获取 openid

Getopenid.php

<?php header('Content-type: application/json; charset=UTF-8'); $APPID="";//填写小程序appid $SECRET="";//填写小程序secret $JSCODE=""; if(isset($_GET['js_code'])){  $JSCODE=$_GET['js_code'];  $url="https://api.weixin.qq.com/sns/jscode2session?appid=".$APPID  ."&secret=".$SECRET."&js_code=".$JSCODE."&grant_type=authorization_code";  $curl = curl_init();  curl_setopt($curl, CURLOPT_URL, $url);  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);  curl_setopt($curl, CURLOPT_HEADER, 0);  $data = curl_exec($curl);  $array=json_decode($data,true);  curl_close($curl);  $openid=isset($array['openid'])?$array['openid']:$array['errcode'];  if($openid=="40029"){   $response["result"] = 0;   $response["msg"] = "invalid code";   $response["openid"] = $openid;   echo json_encode($response);  }else{   $response["result"] = 1;   $response["msg"] = "user exist";   $response["openid"] = $openid;   echo json_encode($response);  } }

小程序存储openid
在app.js中

getUserInfo:function(cb){ var that = this if(this.globalData.userInfo){  typeof cb == "function" && cb(this.globalData.userInfo) }else{  wx.login({  success: function (res) {   if (res.code) {   var code = res.code;   wx.getUserInfo({    success: function (res2) {    console.log(res2);    that.globalData.userInfo = res2.userInfo;    typeof cb == "function" && cb(that.globalData.userInfo)    var encryptedData = encodeURIComponent(res2.encryptedData);//一定要把加密串转成URI编码    var iv = res2.iv;    //请求自己的服务器    //Login(code, encryptedData, iv);    wx.showToast({     title: '正在登录...',     icon: 'loading',     duration: 10000    });    //请求服务器    wx.request({     url: API_URL,//Getopenid.php     data: {     js_code: code,     },     method: 'GET',     header: {     'content-type': 'application/json'     }, // 设置请求的 header     success: function (res) {     // success     wx.hideToast();     console.log("JSON:" + res.data);     if (res.data.result=="1"){//获取openid成功      wx.setStorage({//存储openid      key: "openid",      data: res.data.openid      })     }else{      wx.showToast({      title: 'openid获取失败',      icon: 'none',      duration: 2000      })     }     console.log('服务器返回' + res.data.result);     console.log('服务器返回' + res.data.msg);     console.log('服务器返回' + res.data.openid);     },     fail: function () {     // fail     // wx.hideToast();     },     complete: function () {     // complete     }    })    }   })   } else {   console.log('获取用户登录态失败！' + res.errMsg)   }  }  }) } }

在登陆界面获取openid

var app = getApp()onLoad: function () { console.log('onLoad') var that = this //调用应用实例的方法获取全局数据 app.getUserInfo(function(userInfo){//获取用户信息   //更新数据  that.setData({  userInfo:userInfo  }) })}