3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $input = " asdf asd asd cxv fgg fds fda efefef kej "; print preg_replace('/^(?:.*\s+)?.*$/mg', '$1', $input);
Output for 4.3.11 - 7.1.0
Warning: preg_replace(): Unknown modifier 'g' in /in/oFFSk on line 10
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier 'g' in /in/oFFSk on line 10