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run code in 200+ php & hhvm versions
Bugs & Features
<?php $id="#s#"; $message=""; $rm_trash = preg_replace('#\/\*.*\*\/#U','',$id); var_dump($rm_trash); var_dump(!preg_match('#[^0-9]#',$rm_trash));
Output for 4.3.0 - 7.2.0
string(3) "#s#" bool(false)