3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $id="sadf"; $message=""; $rm_trash = preg_replace('#\/\*.*\*\/#U','',$id); var_dump($rm_trash); var_dump(!preg_match('#^[^0-9]#',$rm_trash));
Output for 4.3.0 - 7.1.0
string(4) "sadf" bool(false)