Hey, it's been a while

Kinda have a small issue. I'm trying get the actual hostname of a domain the problem i face is subdomains.

For example, i'm trying to produce a regex that could at least get all the follow to result in domain.com:

sub.domain.com
domain.co.uk
domain.com
sub.domain.co.uk
sub.sub.domain.gov.uk

etc.. Any ideas?

Thanks!

are you trying to get the hostnames of your website or all the hostnames that have your word (in this example 'domain') from the Internet?

Just a hostname, they are purely examples. The "domain" part could be anything.

You could use the parse_url() function built into PHP to fetch the domain name =)

Note, on invalid url's parse_url() will return false and throw an E_WARNING, so calling it with the error control operator prefixed (@).

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