3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php if (preg_match("/^[a-z\s\.\-,'àâçéèêëîïôûùüÿñæœ]+$/i", ' stop mechanical')) { echo "true"; } else { echo "false"; };
based on ZDde7
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
true