3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $re = '~\[do action\=\"[^\"]*\"\s?[^\]\/]*\]( [^\[\d\o{123}\n]* )\[\/do\]~'; preg_match($re, 'abc'); var_dump($re);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(67) "~\[do action\=\"[^\"]*\"\s?[^\]\/]*\]( [^\[\d\o{123}\n]* )\[\/do\]~"