3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(NAN - 10.0);
based on c0GVl
Output for 4.3.6 - 7.2.0
float(NAN)
Output for 4.3.0 - 4.3.5
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/F0EWM on line 3 float(-10)