3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump( ! ('none' !== 'none')); var_dump( ! ('none2' !== 'none')); if ( ! 'none' !== 'none') { var_dump('success'); } if ( ! 'none2' !== 'none') { var_dump('success'); }
based on fUMr4
Output for 4.3.0 - 7.2.0
bool(true) bool(false) string(7) "success" string(7) "success"