3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump((boolean)preg_match('/[^a-z_\-0-9]/i', 'danielarroyo@gmail.com'));
Output for 4.3.0 - 7.1.7, 7.2.0
bool(true)
Output for 7.1.10

Process exited with code 137.