3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $string = 'string1+String-2'; preg_match_all("/(\W)+\+([\W])+/", $string, $matches); var_dump($matches);
Output for 4.3.0 - 7.2.0
array(3) { [0]=> array(0) { } [1]=> array(0) { } [2]=> array(0) { } }