3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = '__asd990'; $name = preg_replace('/[^a-zA-z0-9 ]/', '', $str); echo $name;
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
__asd990