3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(NAN);
Output for 4.3.6 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
float(NAN)
Output for 4.3.0 - 4.3.5
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/D6IDt on line 2 string(3) "NAN"