How can I tell what was entered?

[BigDC]

Question....
How can I get php to tell me if a user types in the www part in their browser of if they just type in the domain mydomain.com

Examples: Users type in..

www.mydomain.com/this_directory/this_file.php

mydomain.com/this_directory/this_file.php

http://www.mydomain.com/this_directory/this_file.php

www.mydomain.com

mydomain.com


]I don't care about the http:// I also don't care about the /this_directory/this_file.php

I ONLY want to know if the user typed in either www OR mydomain.com OR www.mydomain.com How can I get php to tell me this?

Please help, please?

-Thanks!

[Blacklite]

Use the superglobal; $_SERVER['SERVER_NAME']

Do you know how to use strpos or preg_match to find one string in another string?