3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php setLocale(LC_ALL, 'russian'); $string = 'Привет'; if (ctype_alnum($string)) { echo "This string totally works"; } else { echo "And this one not so much"; }
Output for 4.3.0 - 7.1.0
And this one not so much