3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo preg_replace('/[^a-zA-Z0-9_\.]/', '', "He..___.llo1---23.###6556&.WOrld!;;;");
Output for 4.3.0 - 7.2.0
He..___.llo123.6556.WOrld