Retrieving site domain without www help

[webref.eu]

Hi All

 

If I am on the page: 

 

http://www.mysite.com/site-page.php

 

and I use $_SERVER['HTTP_HOST'] in the code it returns: 

 

www.mysite.com

 

but how do I only return: 

 

mysite.com

 

I guess I could use a string formatting to take away www. but is there a simpler way?  I can't just delete the first four characters as it might not be there if someone is browsing at: 

 

http://mysite.com/site-page.php

 

Thanks All 

 

 

 

[MadTechie]

Will work but theirs probably a better way

$HTTP_HOST = preg_replace('/^www\./i', '', $_SERVER['HTTP_HOST']);
echo $HTTP_HOST;