关于获取远程页面的状态码。。

function curl_file_get_contents($durl){
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $durl);
    curl_setopt($ch, CURLOPT_TIMEOUT, 5);
    curl_setopt($ch, CURLOPT_HEADER, true);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $r = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    return $http_code;
}

echo curl_file_get_contents("localhost/111.php");