3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 'bb'; if (!preg_match('[0-9\-\,]+', $a)) { die('Invalid Request'); }
Output for 4.3.11 - 7.2.0
Warning: preg_match(): Unknown modifier '+' in /in/afU6O on line 3 Invalid Request
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '+' in /in/afU6O on line 3 Invalid Request