Fast 404 error checker for Link Lists

[SortLinks]

mr stiff, its a good idea.."researching" curl right now..
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://www.sortlinks.com");
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_CURLOPT_REFERER, $host);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)");
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
$t = curl_exec($ch);
echo $t;

I was only able get full page like php file()
could you please let me know how to get header and get so called spider response?