本文實例為大家分享了微信小程序支付PHP具體代碼，供大家參考，具體內容如下

服務器端獲取 openid

Getopenid.php

<?php header('Content-type: application/json; charset=UTF-8'); $APPID="";//填寫小程序appid $SECRET="";//填寫小程序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);  } }

小程序存儲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);//一定要把加密串轉成URI編碼    var iv = res2.iv;    //請求自己的服務器    //Login(code, encryptedData, iv);    wx.showToast({     title: '正在登錄...',     icon: 'loading',     duration: 10000    });    //請求服務器    wx.request({     url: API_URL,//Getopenid.php     data: {     js_code: code,     },     method: 'GET',     header: {     'content-type': 'application/json'     }, // 設置請求的 header     success: function (res) {     // success     wx.hideToast();     console.log("JSON:" + res.data);     if (res.data.result=="1"){//獲取openid成功      wx.setStorage({//存儲openid      key: "openid",      data: res.data.openid      })     }else{      wx.showToast({      title: 'openid獲取失敗',      icon: 'none',      duration: 2000      })     }     console.log('服務器返回' + res.data.result);     console.log('服務器返回' + res.data.msg);     console.log('服務器返回' + res.data.openid);     },     fail: function () {     // fail     // wx.hideToast();     },     complete: function () {     // complete     }    })    }   })   } else {   console.log('獲取用戶登錄態失敗！' + res.errMsg)   }  }  }) } }

在登陸界面獲取openid

var app = getApp()onLoad: function () { console.log('onLoad') var that = this //調用應用實例的方法獲取全局數據 app.getUserInfo(function(userInfo){//獲取用戶信息   //更新數據  that.setData({  userInfo:userInfo  }) })}