微信服务号获取openid方法

<div class="cnblogs_code">

app_id;
              $ran = rand(1,100); //预防缓存
              $REDIRECT_URI = 'http://www.onedayoneclass.com/Home/Index/tetst?number='.$ran.''; //一定写上http://
              $scope='snsapi_userinfo';
              $url='https://open.weixin.qq.com/connect/oauth2/authorize?appid='.$APPID.'='.urlencode($REDIRECT_URI).'=code='.$scope.'      }else{
        $appid = $this->app_id;
        $secret = $this->app_secret;
         $code = $_GET["code"];
         $get_token_url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$appid.'</span><span style="color: #ff0000"&gt;&amp;secret</span>='.$secret.'<span style="color: #ff0000"&gt;&amp;code</span>='.$code.'<span style="color: #ff0000"&gt;&amp;grant_type</span><span style="color: #000000"&gt;=authorization_code';
         $ch = curl_init();
         curl_setopt($ch,CURLOPT_URL,$get_token_url);
         curl_setopt($ch,CURLOPT_HEADER,0);
         curl_setopt($ch,CURLOPT_RETURNTRANSFER,1 );
         curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,10);
         $res = curl_exec($ch);
         curl_close($ch);
         $json_obj = json_decode($res,true);
         //根据openid和access_token查询用户信息
         $access_token = $json_obj['access_token'];
         $openid = $json_obj['openid'];
         $get_user_info_url = 'https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token.'</span><span style="color: #ff0000"&gt;&amp;openid</span>='.$openid.'<span style="color: #ff0000"&gt;&amp;lang</span><span style="color: #000000"&gt;=zh_CN';

         $ch = curl_init();
         curl_setopt($ch,$get_user_info_url);
         curl_setopt($ch,10);
         $res = curl_exec($ch);
         curl_close($ch);

         //解析json
         $user_obj = json_decode($res,true);
         $_SESSION['user'] = $user_obj;
         print_r($user_obj);
     }
}</span></pre>

结果：

（编辑：李大同）

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