3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php preg_match("{^[a-zA-Z0-9.-_]+\@[a-zA-Z0-9.-_]\+.[a-zA-Z0-9.-_]+$}",$email); ?>
Output for 5.5.0 - 7.1.7
Notice: Undefined variable: email in /in/AmiCd on line 2
Output for 4.3.0 - 5.4.45