3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // Everything you enter here will be executed by our servers. Try it! $domain = "stackoverflow.com"; $uriToTest = "http://stackoverflow.com/"; $pattern = "/^http(s)?:\///"; $result= preg_match($pattern, $uriToTest); print_r($result);
Output for 4.3.11 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): Unknown modifier '/' in /in/2QYIC on line 8
Output for hhvm-3.12.0
Warning: Unknown modifier '/': [/^http(s)?:\///] in /in/2QYIC on line -1
Output for hhvm-3.10.0
Warning: Unknown modifier '/': [/^http(s)?:\///] in /in/2QYIC on line 8
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '/' in /in/2QYIC on line 8