How to get only domain name without tld,www & subdomain in php?

computerzworld

I want to get domain name from the full URL without tld, www, subdomain.
e.g. if I am having URL like

www.example.com OR

http://example.com OR

http://subdomain.example.com OR

http://www.example.com.au OR

example.com

it should return example

How can I get it? I tried parse_url but it returned me the URL with tld & subdomain. Plesae help me. Thanks in advance.

Weedpacket

Or
http://www.example.co.uk/
http://example.de/

computerzworld

Yes anything can be there in the URL & I want to extract the domain name from it.

Weedpacket

http://www.phpbuilder.com/board/showthread.php?t=10382253

bradgrafelman

stevemcgee;10998306 wrote:
Yes, it is possible in PHP:

$domain = "$_SERVER['HTTP_HOST']";
echo $domain;
In this code you get www url.

$domain = str_replace("www.","", $_SERVER['HTTP_HOST']);
echo $domain;
In this code you get with out www url.

That method fails the third test case the OP supplied.

Derokorian

I came up with this, however it fails with multiple TLDs like in your 4th example in the OP:

$url = 'http://www.example.com/page.php?q=something#anchor';
preg_match('@^(https?://)?([a-z0-9_-]+\.)*([a-z0-9_-]+)\.[a-z]{2,6}(/.*)?$@i',$url,$match);
$domain = $match[3];