3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php if (preg_match("/^[a-z\s\.\-,'àâçéèêëîïôûùüÿñæœ]+$/i", '1 stop mechanical')) { echo "true"; } else { echo "false"; };
based on IUNY2
Output for 4.3.0 - 7.1.0
false