Question

Possible Duplicate:
PHP REGEX: Get domain from URL

I am working on a project and it need to select only main url such as
from http://domain.com/link/project/domain/index.php i need to select only domain.com

Answer 1

For a more general use case you can use parse_url:

$url = 'http://domain.com/link/project/domain/index.php';
$parsed = parse_url($url);
var_dump($parsed['host']); // domain.com
var_dump(parse_url($url, PHP_URL_HOST)); // same