$curl = curl_init();

    curl_setopt($curl,CURLOPT_URL,$url);
    //don't fetch the actual page,you only want headers
    curl_setopt($curl,CURLOPT_NOBODY,true);
    curl_setopt($curl,CURLOPT_HEADER,true);
    //stop it from outputting stuff to stdout
    curl_setopt($curl,CURLOPT_RETURNTRANSFER,true);

    // attempt to retrieve the modification date
    curl_setopt($curl,CURLOPT_FILETIME,true);

    $result = curl_exec($curl);
    echo $result;
    $info = curl_getinfo($curl);
    print_r($info);
    if ($info['filetime'] != -1) { //otherwise unknown
        echo date("Y-m-d H:i:s",$info['filetime']); //etc
    }

这段代码的问题我一直在获得filetime = -1.但是当我删除

curl_setopt($curl,true);

然后我得到正确的修改时间.

是否有可能获得最后的修改时间,但有

curl_setopt($curl,true);

包含在脚本中.
我只需要页面的标题,而不是正文.

提前致谢