$url="http://sait.ru/cat/1/";
$ch = curl_init ($url);
$header[] = "GET /cat/1/ HTTP/1.1";
$header[] = "Accept: */*";
$header[] = "Referer: http://www.ya.ru";
$header[] = "Accept-Language: ru";
$header[] = "Accept-Encoding: gzip, deflate";
$header[] = "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon)";
$header[] = "Host: sait.ru";
$header[] = "Connection: Keep-Alive";

все равно не работает