php url 주소에서 도메인 추출하기

php url 주소에서 도메인 추출하기

   

 function getDomain($url)

    {

        $v = strtolower(trim($url));

        $urlpattern = '/^(?:(?:[a-z]+):\/\/)?((?:[a-z\d\-]{2,}\.)+[a-z]{2,})(?::\d{1,5})?(?:\/[^\?]*)?(?:\?.+)?$/i';

        $dpattern = '/([a-z\d\-]+(?:\.(?:asia|info|name|mobi|com|net|org|biz|tel|xxx|kr|co|so|me|eu|cc|or|pe|ne|re|tv|jp|tw)){1,2})(?::\d{1,5})?(?:\/[^\?]*)?(?:\?.+)?$/i';

 

        if (preg_match($urlpattern, $v))

        {

            preg_match($dpattern, $v, $matches);

            $host = (!$matches[1]) ? $v : $matches[1];

        }

        return $host;

    }