3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x=INF; $y=-INF; var_dump($x+$y);
Output for 4.3.6 - 7.1.0
float(NAN)
Output for 4.3.0 - 4.3.5
Notice: Use of undefined constant INF - assumed 'INF' in /in/ZtVcJ on line 2 Notice: Use of undefined constant INF - assumed 'INF' in /in/ZtVcJ on line 3 int(0)