3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $abcd="this-is-a-test"; $abcd = preg_replace('/( / *)/','', $abcd); echo $abcd."\n";
based on bgCvW
Output for 4.3.11 - 7.2.0
Warning: preg_replace(): Unknown modifier '*' in /in/Jt6Wm on line 4
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '*' in /in/Jt6Wm on line 4