微信小程序获取 openID

1.通过 wx.login接口获取code如： wx.login({     success: res => {       console.log("code",res)       // 发送 res.code 到后台换取 openId, sessionKey, unionId       var wx_code=res.code

         wx.request({  url: 'https://spreaddisc.checkba.net/index.php',                    method: "POST",                     data: {                       wx_code:wx_code                     },                     header: {                       'content-type': 'application/x-www-form-urlencoded' // 默认值                     },                     success: function (res) {                       //这里可以获取数据；                       console.log("openid", res);

                      var data = res.data;                       var length = data.length;

} PHP代码： index.php

$code=I("post.wx_code");      $appid="************";      $secret="*********";  $api="https://api.weixin.qq.com/sns/jscode2session?appid={$appid}&secret={$secret}&js_code={$code}&grant_type=authorization_code"; //调用官方接口      $wx_code=$this->httpGet($api);      $data=json_decode($wx_code,true);      $openid=$data["openid"]; //用户的openid       echo $openid;

httpGet函数： public function httpGet($url){     $curl = curl_init();     curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);     curl_setopt($curl, CURLOPT_TIMEOUT,500);     curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);     curl_setopt($curl, CURLOPT_SSL_VERIFYHOST , true);     curl_setopt($curl, CURLOPT_URL, $url);     $res = curl_exec($curl);     curl_close($curl);     return $res; } ---------------------  作者：he_Lucian  来源：CSDN  原文：https://blog.csdn.net/u012729832/article/details/79650531  版权声明：本文为博主原创文章，转载请附上博文链接！