Question

I have been looking around for a regex expression that will spit out just the ‘stackoverflow’ part and no www. or .com etc. All I could find was to check if the url’s were valid… I have used php’s url filter to determine that much I now am looking to determine which site it is.

I have never written an expression before so I am hoping someone can check it/recommend a better solution.

preg_match('@^(?:http://)(?:www.)?([^.]+)@i', $url, $matches)

edit:
All the url’s I am dealing with are .com if that helps

Answer 1

one-liner without using regular expressions!!!

$url = 'http://stackoverflow.com';
$d = array_shift( explode( '.', str_replace('www.', '', parse_url( $url, PHP_URL_HOST )) ) );
echo $d;