App({
 onLaunch: function () {
  // 登錄
  wx.login({
   success: function (res) {
    if (res.code) {
     //發(fā)起網(wǎng)絡(luò)請求
     wx.request({
      url: 'https://www.msllws.top/delcode.php',
      data: {
       code: res.code
      }
     })
    } else {
     console.log('登錄失敗！' + res.errMsg)
    }
   }
  });
 }
})

<?php 
  $code = $_GET['code'];
  $appid = 'wx1aebd07bdcf596b8';
  $secret = '9ee8211007b81efd8c11d7d82d3b8658';
  $url = 'https://api.weixin.qq.com/sns/jscode2session?appid='.$appid.'&secret='.$secret.'&js_code='.$code.'&grant_type=authorization_code';
  $res = file_get_contents($url);

  //(省略業(yè)務(wù)邏輯:保存返回結(jié)果中的openid與用戶userid關(guān)聯(lián)......)

  echo $res;

<open-data type="userAvatarUrl"></open-data>
<open-data type="userNickName"></open-data>

<button wx:if="{{canIUse}}" open-type="getUserInfo" bindgetuserinfo="bindGetUserInfo">授權(quán)登錄</button>
<view wx:else>請升級微信版本</view>

Page({
 data: {
  //判斷getUserInfo是否在當(dāng)前版本可用
  canIUse: wx.canIUse('button.open-type.getUserInfo')
 },
 bindGetUserInfo(e) {
  console.log(e.detail.userInfo)
 }
})

Page({
 data: {
  //判斷getUserInfo是否在當(dāng)前版本可用
  canIUse: wx.canIUse('button.open-type.getUserInfo')
 },
 onLoad: function () {
  // 查看是否授權(quán)
  wx.getSetting({
   success(res) {
    if (res.authSetting['scope.userInfo']) {
     // 已經(jīng)授權(quán)，直接調(diào)用getUserInfo獲取用戶信息
     wx.getUserInfo({
      success: function (res) {
       console.log(res.userInfo)
      }
     })
    }
   }
  })
 },
 bindGetUserInfo(e) {
  console.log(e.detail.userInfo)
 }
})