Each Top Level Domain (TLD) has totally different whois server (example: .com and .net whois server is whois.verisign-grs.com) that listen at port no. 43. During this blog post we have list of whois servers according to their TLD. First extract TLD from domain and find its whois server. Then connect with whois server on port 43 using fsockopen() and write the domain name using fputs(). And at last read the response using fgets().
This class contains Automatically remove http:// and www. from start of domain, No dependencies, In-built IP and domain validator, Automatically lookup for secondary whois server features.
Following is PHP class to get Domain or IP whois information. Save it as whois-lookup.php
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
class getWhois{
private $WHOIS_SERVERS = array(
"com" => array("whois.verisign-grs.com","whois.crsnic.net"),
"net" => array("whois.verisign-grs.com","whois.crsnic.net"),
"org" => array("whois.pir.org","whois.publicinterestregistry.net"),
"info" => array("whois.afilias.info","whois.afilias.net"),
"biz" => array("whois.neulevel.biz"),
"us" => array("whois.nic.us"),
"uk" => array("whois.nic.uk"),
"ca" => array("whois.cira.ca"),
"tel" => array("whois.nic.tel"),
"ie" => array("whois.iedr.ie","whois.domainregistry.ie"),
"it" => array("whois.nic.it"),
"li" => array("whois.nic.li"),
"no" => array("whois.norid.no"),
"cc" => array("whois.nic.cc"),
"eu" => array("whois.eu"),
"nu" => array("whois.nic.nu"),
"au" => array("whois.aunic.net","whois.ausregistry.net.au"),
"de" => array("whois.denic.de"),
"ws" => array("whois.worldsite.ws","whois.nic.ws","www.nic.ws"),
"sc" => array("whois2.afilias-grs.net"),
"mobi" => array("whois.dotmobiregistry.net"),
"pro" => array("whois.registrypro.pro","whois.registry.pro"),
"edu" => array("whois.educause.net","whois.crsnic.net"),
"tv" => array("whois.nic.tv","tvwhois.verisign-grs.com"),
"travel" => array("whois.nic.travel"),
"name" => array("whois.nic.name"),
"in" => array("whois.inregistry.net","whois.registry.in"),
"me" => array("whois.nic.me","whois.meregistry.net"),
"at" => array("whois.nic.at"),
"be" => array("whois.dns.be"),
"cn" => array("whois.cnnic.cn","whois.cnnic.net.cn"),
"asia" => array("whois.nic.asia"),
"ru" => array("whois.ripn.ru","whois.ripn.net"),
"ro" => array("whois.rotld.ro"),
"aero" => array("whois.aero"),
"fr" => array("whois.nic.fr"),
"se" => array("whois.iis.se","whois.nic-se.se","whois.nic.se"),
"nl" => array("whois.sidn.nl","whois.domain-registry.nl"),
"nz" => array("whois.srs.net.nz","whois.domainz.net.nz"),
"mx" => array("whois.nic.mx"),
"tw" => array("whois.apnic.net","whois.twnic.net.tw"),
"ch" => array("whois.nic.ch"),
"hk" => array("whois.hknic.net.hk"),
"ac" => array("whois.nic.ac"),
"ae" => array("whois.nic.ae"),
"af" => array("whois.nic.af"),
"ag" => array("whois.nic.ag"),
"al" => array("whois.ripe.net"),
"am" => array("whois.amnic.net"),
"as" => array("whois.nic.as"),
"az" => array("whois.ripe.net"),
"ba" => array("whois.ripe.net"),
"bg" => array("whois.register.bg"),
"bi" => array("whois.nic.bi"),
"bj" => array("www.nic.bj"),
"br" => array("whois.nic.br"),
"bt" => array("whois.netnames.net"),
"by" => array("whois.ripe.net"),
"bz" => array("whois.belizenic.bz"),
"cd" => array("whois.nic.cd"),
"ck" => array("whois.nic.ck"),
"cl" => array("nic.cl"),
"coop" => array("whois.nic.coop"),
"cx" => array("whois.nic.cx"),
"cy" => array("whois.ripe.net"),
"cz" => array("whois.nic.cz"),
"dk" => array("whois.dk-hostmaster.dk"),
"dm" => array("whois.nic.cx"),
"dz" => array("whois.ripe.net"),
"ee" => array("whois.eenet.ee"),
"eg" => array("whois.ripe.net"),
"es" => array("whois.ripe.net"),
"fi" => array("whois.ficora.fi"),
"fo" => array("whois.ripe.net"),
"gb" => array("whois.ripe.net"),
"ge" => array("whois.ripe.net"),
"gl" => array("whois.ripe.net"),
"gm" => array("whois.ripe.net"),
"gov" => array("whois.nic.gov"),
"gr" => array("whois.ripe.net"),
"gs" => array("whois.adamsnames.tc"),
"hm" => array("whois.registry.hm"),
"hn" => array("whois2.afilias-grs.net"),
"hr" => array("whois.ripe.net"),
"hu" => array("whois.ripe.net"),
"il" => array("whois.isoc.org.il"),
"int" => array("whois.isi.edu"),
"iq" => array("vrx.net"),
"ir" => array("whois.nic.ir"),
"is" => array("whois.isnic.is"),
"je" => array("whois.je"),
"jp" => array("whois.jprs.jp"),
"kg" => array("whois.domain.kg"),
"kr" => array("whois.nic.or.kr"),
"la" => array("whois2.afilias-grs.net"),
"lt" => array("whois.domreg.lt"),
"lu" => array("whois.restena.lu"),
"lv" => array("whois.nic.lv"),
"ly" => array("whois.lydomains.com"),
"ma" => array("whois.iam.net.ma"),
"mc" => array("whois.ripe.net"),
"md" => array("whois.nic.md"),
"mil" => array("whois.nic.mil"),
"mk" => array("whois.ripe.net"),
"ms" => array("whois.nic.ms"),
"mt" => array("whois.ripe.net"),
"mu" => array("whois.nic.mu"),
"my" => array("whois.mynic.net.my"),
"nf" => array("whois.nic.cx"),
"pl" => array("whois.dns.pl"),
"pr" => array("whois.nic.pr"),
"pt" => array("whois.dns.pt"),
"sa" => array("saudinic.net.sa"),
"sb" => array("whois.nic.net.sb"),
"sg" => array("whois.nic.net.sg"),
"sh" => array("whois.nic.sh"),
"si" => array("whois.arnes.si"),
"sk" => array("whois.sk-nic.sk"),
"sm" => array("whois.ripe.net"),
"st" => array("whois.nic.st"),
"su" => array("whois.ripn.net"),
"tc" => array("whois.adamsnames.tc"),
"tf" => array("whois.nic.tf"),
"th" => array("whois.thnic.net"),
"tj" => array("whois.nic.tj"),
"tk" => array("whois.nic.tk"),
"tl" => array("whois.domains.tl"),
"tm" => array("whois.nic.tm"),
"tn" => array("whois.ripe.net"),
"to" => array("whois.tonic.to"),
"tp" => array("whois.domains.tl"),
"tr" => array("whois.nic.tr"),
"ua" => array("whois.ripe.net"),
"uy" => array("nic.uy"),
"uz" => array("whois.cctld.uz"),
"va" => array("whois.ripe.net"),
"vc" => array("whois2.afilias-grs.net"),
"ve" => array("whois.nic.ve"),
"vg" => array("whois.adamsnames.tc"),
"yu" => array("whois.ripe.net")
);
public function whoislookup($domain)
{
$domain = trim($domain); //remove space from start and end of domain
if(substr(strtolower($domain), 0, 7) == "http://") $domain = substr($domain, 7); // remove http:// if included
if(substr(strtolower($domain), 0, 4) == "www.") $domain = substr($domain, 4);//remove www from domain
if(preg_match("/^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$/",$domain))
return $this->queryWhois("whois.lacnic.net",$domain);
elseif(preg_match("/^([-a-z0-9]{2,100})\.([a-z\.]{2,8})$/i",$domain))
{
$domain_parts = explode(".", $domain);
$tld = strtolower(array_pop($domain_parts));
$server = $this->WHOIS_SERVERS[$tld][0];
if(!$server) {
return "Error: No appropriate Whois server found for $domain domain!";
}
$res=$this->queryWhois($server,$domain);
while(preg_match_all("/Whois Server: (.*)/", $res, $matches))
{
$server=array_pop($matches[1]);
$res=$this->queryWhois($server,$domain);
}
return $res;
}
else
return "Invalid Input";
}
private function queryWhois($server,$domain)
{
$fp = @fsockopen($server, 43, $errno, $errstr, 20) or die("Socket Error " . $errno . " - " . $errstr);
if($server=="whois.verisign-grs.com")
$domain="=".$domain;
fputs($fp, $domain . "\r\n");
$out = "";
while(!feof($fp)){
$out .= fgets($fp);
}
fclose($fp);
return $out;
}
}
?>
Usage of class
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
require_once("whois-lookup.php")
$whois=new getWhois;
echo $whois->whoislookup("Your domain or IP");
?>
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