3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php return preg_match('#\\b' . preg_quote('no', '#') . '\\b#i', 'NO') || preg_match('#\\b' . preg_quote('No', '#') . '\\b#i', 'NO');
based on BVlCp
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc6