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run code in 150+ php & hhvm versions
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<?php // Everything you enter here will be executed by our servers. Try it! $domain = "stackoverflow.com"; $uriToTest = "http://stackoverflow.com/"; $pattern = "/^http(s)?:\//(([a-z]+)\.)*".$domain."/"; print_r( preg_match($pattern, $uriToTest));
Output for 4.3.11 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): Unknown modifier '(' in /in/S8gZt on line 8
Output for hhvm-3.10.0 - 3.12.0
Warning: Unknown modifier '(': [/^http(s)?:\//(([a-z]+)\.)*stackoverflow.com/] in /in/S8gZt on line 8
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '(' in /in/S8gZt on line 8