PHP之微信服务号如何获取openid

本篇文章主要讲述了用PHP实现微信服务号获取openid，具有一定参考价值，感兴趣的朋友可以了解一下。
    public function tetst(){
 if(!isset($_GET['code'])){
    $APPID = $this->app_id;
    $ran = rand(1,100); //预防缓存
    $REDIRECT_URI = 'http://HdhCmsTestonedayoneclass测试数据/Home/Index/tetst?number='.$ran.''; //一定写上http://
    $scope='snsapi_userinfo';
    $url='https://open.weixin.qq测试数据/connect/oauth2/authorize?appid='.$APPID.'&redirect_uri='.urlencode($REDIRECT_URI).'&response_type=code&scope='.$scope.'&state=wx'.'#wechat_redirect';
    //加缓存 随机数
    header("Location:".$url);
}else{
  $appid = $this->app_id;
  $secret = $this->app_secret;
   $code = $_GET["code"];
   $get_token_url = 'https://api.weixin.qq测试数据/sns/oauth2/access_token?appid='.$appid.'&secret='.$secret.'&code='.$code.'&grant_type=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'];
   $get_user_info_url = 'https://api.weixin.qq测试数据/sns/userinfo?access_token='.$access_token.'&openid='.$openid.'&lang=zh_CN';
   
   $ch = curl_init();
   curl_setopt($ch,CURLOPT_URL,$get_user_info_url);
   curl_setopt($ch,CURLOPT_HEADER,0);
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
   curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
   $res = curl_exec($ch);
   curl_close($ch);
   
   //解析json
   $user_obj = json_decode($res,true);
   $_SESSION['user'] = $user_obj;
   print_r($user_obj);
    }
    }
结果：