3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function getDifference($a, $b) { echo (a-b); } getDifference(5, 3); ?>
based on Algtj
Output for 7.2.0 - 7.2.11
Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/eqjIc on line 3 Warning: Use of undefined constant b - assumed 'b' (this will throw an Error in a future version of PHP) in /in/eqjIc on line 3 Warning: A non-numeric value encountered in /in/eqjIc on line 3 Warning: A non-numeric value encountered in /in/eqjIc on line 3 0
Output for 7.1.0 - 7.1.23
Notice: Use of undefined constant a - assumed 'a' in /in/eqjIc on line 3 Notice: Use of undefined constant b - assumed 'b' in /in/eqjIc on line 3 Warning: A non-numeric value encountered in /in/eqjIc on line 3 Warning: A non-numeric value encountered in /in/eqjIc on line 3 0
Output for 5.3.22 - 5.6.38, hhvm-3.10.1 - 3.21.3, 7.0.0 - 7.0.31
Notice: Use of undefined constant a - assumed 'a' in /in/eqjIc on line 3 Notice: Use of undefined constant b - assumed 'b' in /in/eqjIc on line 3 0
Output for hhvm-3.22.0
Notice: Use of undefined constant a - assumed 'a' in /in/eqjIc on line -1 Notice: Use of undefined constant b - assumed 'b' in /in/eqjIc on line -1 0