3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $username = 'abcd'; if (!preg_match("/^[a-z0-9\.\-'\s,àâçéèêëîïôûùüÿñæœ]+$/i", $username)) { echo "username not ok"; } else { echo "username ok"; }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
username ok