PHP 微信公众号：网页授权获取OpenID_hyperf easywechat 实现获取公众号openid-优快云博客

本文链接：https://blog.youkuaiyun.com/csdn_Y_w/article/details/106287749

PHP 微信公众号：网页授权获取OpenID

第一步：启用服务器模式可看
https://blog.youkuaiyun.com/Aaroun/article/details/80887137

第二步：
获取code：
https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_webpage_authorization.html#0
在这里插入图片描述
拼接上链接访问后获取到 code
https://open.weixin.qq.com/connect/oauth2/authorize?appid=公众号appid&redirect_uri=自己的回调地址地址&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect

https://open.weixin.qq.com/connect/oauth2/authorize?appid=appid&redirect_uri=http://www.xxxx.com/xxxxx/xx/0507.php&response_type=code&scope=snsapi_base&state=123#wechat_redirect

写在你的回调地址  	0507.php
 
             $code = $_GET['code'];//获取code
            // var_dump($code);
             $weixin =  file_get_contents("https://api.weixin.qq.com/sns/oauth2/access_token?appid=$appid&secret=$secret&code=".$code."&grant_type=authorization_code");//通过code换取网页授权access_token
             //var_dump($weixin);
             $jsondecode = json_decode($weixin); //对JSON格式的字符串进行编码
             //var_dump($jsondecode);
             $array = get_object_vars($jsondecode);//转换成数组
            // var_dump($array);
             $_SESSION['OpenID']=$array['openid'];
             //echo "<script>alert('$_SESSION[OpenID]')</script>";