微信授权登陆获取用户信息

根据微信api和自己实际项目开发；

 1  public function getuserinfo()
 2     {
 3         if (isset($_GET[\'code\'])) {
 4             //获取access_token  openid  refresh_token
 5             $url1 = \'https://api.weixin.qq.com/sns/oauth2/access_token?appid=\' . $this->appid . \'&secret=\' . $this->secret . \'&code=\' . $_GET[\'code\'] . \'&grant_type=authorization_code\';
 6             $result_access_token = $this->http_curl($url1); //主要返回取access_token 和 openid
 7             $arr = json_decode($result_access_token, true); //数组
 8             //验证access_token是否有效
 9             $url_fresh_verification = \'https://api.weixin.qq.com/sns/auth?access_token=\' . $arr[\'access_token\'] . \'&openid=\' . $arr[\'openid\'] . \'\';
10             $refresh_token_istrue = $this->http_curl($url_fresh_verification);
11             $refresh_token_istrue = json_decode($refresh_token_istrue, true);
12             if ($refresh_token_istrue[\'errcode\'] != 0) {
13                 //3.0 重新刷新access_token
14                 $url_get_new_access_token = \'https://api.weixin.qq.com/sns/oauth2/refresh_token?appid=wxeb8d4ef8686310eb&grant_type=refresh_token&refresh_token=\' . $arr[\'refresh_token\'] . \'\';
15                 $new_access_token = $this->http_curl($url_get_new_access_token);
16                 $obj = json_decode($new_access_token);
17                 //重新取得access_token
18                 $arr[\'access_token\'] = $obj->access_token;
19             }
20             // 获取用户信息
21             if (count($arr) > 2) {
22                 $url_userinfo = \'https://api.weixin.qq.com/sns/userinfo?access_token=\' . $arr[\'access_token\'] . \'&openid=\' . $arr[\'openid\'] . \'&lang=zh_CN\';
23                 $result_userinfo = $this->http_curl($url_userinfo);
24                 //dump(json_decode($result_userinfo,true));
25             } else {
26                 echo json_encode($arr);
27             }
28         } else {
29             echo "授权失败";
30         }
31     }

curl会话机制执行url

1 public function http_curl($url){
2     $ch=curl_init();//开启会话机制
3     curl_setopt($ch,CURLOPT_URL,$url);
4     curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); //获取数据返回
5     curl_setopt($ch,CURLOPT_BINARYTRANSFER,true); //启用
6     $result=curl_exec($ch); //执行
7     curl_close($ch); //关闭会话机制
8     return json_decode($result,true); //true 返回数组，默认返回对象
9 }