3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo join(':', array(NAN == NAN, NAN > NAN, NAN < NAN));
Output for 4.3.6 - 5.3.29, 7.0.0 - 7.1.0
:1:1
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
::
Output for 4.3.0 - 4.3.5
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/GZvBo on line 3 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/GZvBo on line 3 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/GZvBo on line 3 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/GZvBo on line 3 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/GZvBo on line 3 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/GZvBo on line 3 1::