3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = null; $c = 32 + 15 + a; echo $c;
Output for 7.1.0
Notice: Use of undefined constant a - assumed 'a' in /in/Igjec on line 5 Warning: A non-numeric value encountered in /in/Igjec on line 5 47
Output for 4.3.0 - 5.6.28, hhvm-3.10.0, 7.0.0 - 7.0.14
Notice: Use of undefined constant a - assumed 'a' in /in/Igjec on line 5 47
Output for hhvm-3.12.0
Notice: Use of undefined constant a - assumed 'a' in /in/Igjec on line -1 47