使用php SDK上传文件后怎么查看返回值？

解决了，谢谢！

response 返回的就是一个HTTP response对象
可以打印出来
echo '|-----------------------Start---------------------------------------------------------------------------------------------------'."\n";
            echo '|-Status:' . $response->status . "\n";
            echo '|-Body:' ."\n";
            $body = $response->body . "\n";
            echo $body . "\n";
            echo "|-Header:\n";
            print_r ($response->header);
            echo '-----------------------End-----------------------------------------------------------------------------------------------------'."\n\n";
都可以打印，然后变成字符写到文件就可以了。