3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $host = 'host.dupa.com'; preg_match('([^\.])\.([^\.])$', $host, $matches); echo $matches[1];
Output for 5.2.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): Unknown modifier '\' in /in/TsYKX on line 5
Output for hhvm-3.10.0 - 3.12.0
Warning: Unknown modifier '\': [([^\.])\.([^\.])$] in /in/TsYKX on line 5
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Unknown modifier '\' in /in/TsYKX on line 5 Notice: Undefined offset: 1 in /in/TsYKX on line 7
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '\' in /in/TsYKX on line 5 Notice: Undefined offset: 1 in /in/TsYKX on line 7