PHP Getting Information About a Domain Name

Jan 24, 2009 Author: Developer

You want to look up contact information or other details about a domain name.

Use PEAR's Net_Whois class:
require 'Net/Whois.php';
$server = 'whois.networksolutions.com';
$query = 'example.org';
$data = Net_Whois::query($server, $query);

 

The Net_Whois::query( ) method returns a large text string whose contents reinforce how
hard it can be to parse different Whois results:
Registrant:
Internet Assigned Numbers Authority (EXAMPLE2-DOM)
4676 Admiralty Way, Suite 330
Marina del Rey, CA 90292
US
Domain Name: EXAMPLE.ORG
Administrative Contact, Technical Contact, Billing Contact:
Internet Assigned Numbers Authority (IANA) iana@IANA.ORG
4676 Admiralty Way, Suite 330
Marina del Rey, CA 90292
US
310-823-9358
Fax- 310-823-8649
Record last updated on 07-Jan-2002.
Record expires on 01-Sep-2009.
Record created on 31-Aug-1995.
Database last updated on 6-Apr-2002 02:56:00 EST.
Domain servers in listed order:
A.IANA-SERVERS.NET 192.0.34.43
B.IANA-SERVERS.NET 193.0.0.236
For instance, if you want to parse out the names and IP addresses of the domain name
servers, use this:
preg_match_all('/^\s*([\S]+)\s+([\d.]+)\s*$/m', $data, $dns,
PREG_SET_ORDER);
foreach ($dns as $server) {
print "$server[1] : $server[2]\n";
}
You must set $server to the correct Whois server for a domain to get information about that
domain. If you don't know the server to use, query whois.internic.net:
require 'Net/Whois.php';
print Net_Whois::query('whois.internic.net','example.org');
[whois.internic.net]
Whois Server Version 1.3
Domain names in the .com, .net, and .org domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.
Domain Name: EXAMPLE.ORG
Registrar: NETWORK SOLUTIONS, INC.
Whois Server: whois.networksolutions.com
Referral URL: http://www.networksolutions.com
Name Server: A.IANA-SERVERS.NET
Name Server: B.IANA-SERVERS.NET
Updated Date: 19-aug-2002
>>> Last update of whois database: Wed, 21 Aug 2002 04:56:56 EDT <<<
The Registry database contains ONLY .COM, .NET, .ORG, .EDU domains and
Registrars.
The "Whois Server:" line says that the correct server to ask for information about example.org
is whois.networksolutions.com.

 

PEAR's Net_Whois class


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