3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $st = "äöüß"; $dirname = preg_replace ( '/\s*/', '_', $tmp );
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: tmp in /in/GfGnW on line 3
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: tmp in /in/GfGnW on line 3