3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $input = " asdf asd asd cxv fgg fds fda efefef kej "; print $input; print preg_replace('/^(?:.*\s+)?.*$/m', '$1', $input);
Output for 4.3.0 - 7.2.0
asdf asd asd cxv fgg fds fda efefef kej