3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $id = '1%0AUNION SELECT 1,2,3,4,5,6 -- -'; if (preg_match('/^[0-9]+$/m', $id)) { echo 'This is a valid id.'; } else { echo 'Are you trying to hack me?'; }
Output for 4.3.0 - 7.2.0
Are you trying to hack me?