private function ip_server($ip)
{
if ($this->ip_valid($ip)) {
if (class_exists('ip2country')) {
$ip2country = new ip2country();
$ip2country->ip_country($ip);
$registry = $ip2country->registry;
} else {
//http://www.team-cymru.org/Services/ip-to-asn.html
$results = dns_get_record($this->ip_reverse($ip) . '.origin.asn.cymru.com', DNS_TXT);
$results_a = explode('|', $results[0]['txt']);
$registry = trim($results_a[3]);
}
switch ($registry) {
case "ripencc":
return "whois.ripe.net";
case "apnic":
return "whois.apnic.net";
case "arin":
return "whois.arin.net";
case "lacnic":
return "whois.lacnic.net";
case "afrinic":
return "whois.afrinic.net";
default:
return false;
}
}
return false;
//IP number not valid
}
