laravel 中使用tinker 验证驱动加载是否成功

public function callback()
    {
        /*$code=request('code');
        dd($code);*/
        $oauthUser = Socialite::driver('weibo')->user();
//        dd($oauthUser);
        $sina_id = (int)$oauthUser->getId();
        $name = $oauthUser->getName();
        $nickname = $oauthUser->getNickname();
        $email = $oauthUser->getEmail();
        $sina_avatar = $oauthUser->getAvatar();

        /* //从 Token（OAuth2）中获取用户信息
         $token = $oauthUser->token;
         $user = Socialite::driver('WeiBo')->userFromToken($token);
         dd($user);*/

        $where['sina_id'] = $sina_id;
        $userDetail = ThirdLogin::where($where)->first();
        //若sina_id用户不存在，向third_login表中添加用户信息的同时，向user表中也添加条信息，
        //将user信息与third_login，方便前台登录查询
        if (empty($userDetail)) {
            $user = ThirdLogin::create(compact('sina_id', 'name', 'nickname', 'email', 'sina_avatar'));

            $name = $user->nickname;
            $avatar = $user->sina_avatar;
            $email = $user->email;
            $third_id = $user->sina_id;
            $password = 0;
            User::create(compact('name', 'password', 'email', 'avatar', 'third_id'));

            //使用Auth::login（实例，true）授权登录  ,这部分代码不能拿出去优化
            $is_user = user::where('third_id', $user->sina_id)->first();
            Auth::login($is_user, $remember = false);
            if (\Auth::check()) {//授权成功
                return \redirect('/posts');
            } else {
                return \Redirect::back()->withErrors('授权失败');
            }
//            User::third_login($user);
        } else {

            $is_user = user::where('third_id', $userDetail->sina_id)->first();
            Auth::login($is_user, $remember = false);
            if (\Auth::check()) {//授权成功
                return \redirect('/posts');
            } else {
                return \Redirect::back()->withErrors('授权失败');
            }

//            User::third_login($userDetail);
//          return Redirect::back()->withErrors('微博用户'.$userDetail->nickname.'已存在');
        }


    }