3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = 'e23e23'; function checkValid($string) { preg_match('/[^A-Za-z0-9.#\\-$]/', $str) ? true : false; }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0