3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo gettype(NaN);
based on vsWdt
Output for 7.2.0
Warning: Use of undefined constant NaN - assumed 'NaN' (this will throw an Error in a future version of PHP) in /in/IlT57 on line 3 string
Output for 5.3.18 - 7.1.10
Notice: Use of undefined constant NaN - assumed 'NaN' in /in/IlT57 on line 3 string