Retrieving whois raw data

I am working on a site that requires me to pull whois data and parse it afterwards. I have tried many ways and many different whois servers (whois.nsiregistry.net, whois.internic.net, whois.crsnic.net) but I can not get real whois records (domain registrar, created/expired date etc.), all I can get is just some zone information.

Any help would be appreciated.

function whois($dn) {
$fp = fsockopen('whois.nsiregistry.net',43);
if($fp) {
fputs($fp, $dn."\r\n");
while(!feof($fp)) {
$data .= fread($fp, 1024);
}
fclose($fp);
} else {
$data = "error";
}
return $data;
}

echo whois('yahoo.com');

 

Have you tried connecting to the registrars whois server to fetch that information?

Jay