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<?php // Everything you enter here will be executed by our servers. Try it! $domain = "stackoverflow.com"; $uriToTest = "http://stackoverflow.com/"; $pattern = "/^http(s)?:\//(([a-z]+)\.)*/"; $result= preg_match($pattern, $uriToTest); print_r($result);
Output for 4.3.11 - 7.1.0
Warning: preg_match(): Unknown modifier '(' in /in/o6l0Z on line 8
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '(' in /in/o6l0Z on line 8