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function whois_query( $domain ) {
$domain = strtolower (trim( $domain ));
$domain = preg_replace( '/^http:\/\//i' , '' , $domain );
$domain = preg_replace( '/^www\./i' , '' , $domain );
$domain = explode ( '/' , $domain );
$domain = trim( $domain [0]);
$_domain = explode ( '.' , $domain );
$lst = count ( $_domain )-1;
$ext = $_domain [ $lst ];
$servers = array (
"biz" => "whois.neulevel.biz" ,
"com" => "whois.internic.net" ,
"us" => "whois.nic.us" ,
"coop" => "whois.nic.coop" ,
"info" => "whois.nic.info" ,
"name" => "whois.nic.name" ,
"net" => "whois.internic.net" ,
"gov" => "whois.nic.gov" ,
"edu" => "whois.internic.net" ,
"mil" => "rs.internic.net" ,
"int" => "whois.iana.org" ,
"ac" => "whois.nic.ac" ,
"ae" => "whois.uaenic.ae" ,
"at" => "whois.ripe.net" ,
"au" => "whois.aunic.net" ,
"be" => "whois.dns.be" ,
"bg" => "whois.ripe.net" ,
"br" => "whois.registro.br" ,
"bz" => "whois.belizenic.bz" ,
"ca" => "whois.cira.ca" ,
"cc" => "whois.nic.cc" ,
"ch" => "whois.nic.ch" ,
"cl" => "whois.nic.cl" ,
"cn" => "whois.cnnic.net.cn" ,
"cz" => "whois.nic.cz" ,
"de" => "whois.nic.de" ,
"fr" => "whois.nic.fr" ,
"hu" => "whois.nic.hu" ,
"ie" => "whois.domainregistry.ie" ,
"il" => "whois.isoc.org.il" ,
"in" => "whois.ncst.ernet.in" ,
"ir" => "whois.nic.ir" ,
"mc" => "whois.ripe.net" ,
"to" => "whois.tonic.to" ,
"tv" => "whois.tv" ,
"ru" => "whois.ripn.net" ,
"org" => "whois.pir.org" ,
"aero" => "whois.information.aero" ,
"nl" => "whois.domain-registry.nl"
);
if (!isset( $servers [ $ext ])){
die ( 'Error: No matching nic server found!' );
}
$nic_server = $servers [ $ext ];
$output = '' ;
if ( $conn = fsockopen ( $nic_server , 43)) {
fputs ( $conn , $domain . "\r\n" );
while (! feof ( $conn )) {
$output .= fgets ( $conn ,128);
}
fclose( $conn );
}
else { die ( 'Error: Could not connect to ' . $nic_server . '!' ); }
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