3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $input = "Wij #^@ & zij !> !-?!"; echo rtrim(preg_replace('/([^a-z0-9]+)/', '-', strtolower($input)), '-');
Output for 4.3.0 - 7.2.0
wij-zij