关于使用 code 获取微信用户信息的疑问

        try {
            if ($code = $request->code) {
                $response = $driver->getAccessTokenResponse($code);
                $token = array_get($response, 'access_token');
                // 为啥使用 code 的时候，获取到数据，不判断一下是否是weixin，然后通过 response 获取到 openid，赋值给 $driver?
            } else {
                $token = $request->access_token;
                if ($type == 'weixin') {
                    $driver->setOpenId($request->openid);
                }
            }
        }

下面是我修改的

        try {
            if ($code = $request->code) {
                $response = $driver->getAccessTokenResponse($code);
                $token = array_get($response, 'access_token');
                if ($type == 'weixin') {
                    $driver->setOpenId(array_get($response, 'openid'));
                }
            } else {
                $token = $request->access_token;

                if ($type == 'weixin') {
                    $driver->setOpenId($request->openid);
                }
            }

            $oauthUser = $driver->userFromToken($token);
        }