我有一个curl,它可以在本地主机上运行,但不能在实时网站上运行。我不明白为什么

1. 它连接到IP地址www.bata.com.sg解析为-194.228.50.32

<?php

// this is the IP address that www.bata.com.sg resolves to
$server = '194.228.50.32';
$host   = 'www.bata.com.sg';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $server);

/* set the user agent - might help, doesn't hurt */
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)');
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);


/* try to follow redirects */
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

/* timeout after the specified number of seconds. assuming that this script runs
on a server, 20 seconds should be plenty of time to verify a valid URL.  */
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
curl_setopt($ch, CURLOPT_TIMEOUT, 20);


$headers = array();
$headers[] = "Host: $host";

curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);

curl_setopt($ch, CURLOPT_VERBOSE, true);

/* don't download the page, just the header (much faster in this case) */
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_HEADER, true);

$response = curl_exec($ch);
curl_close($ch);

var_dump($response);

在使用这个网站时,我被告知bata.com.sg的名称服务器有问题

http://www.intodns.com/bata.com.sg

file_get_contents('http://www.yahoo.com.sg');