3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getDifference($a, $b) { return a-b; } getDifference(5, 3); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "a" in /in/329VI:3 Stack trace: #0 /in/329VI(5): getDifference(5, 3) #1 {main} thrown in /in/329VI on line 3
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/329VI on line 3 Warning: Use of undefined constant b - assumed 'b' (this will throw an Error in a future version of PHP) in /in/329VI on line 3 Warning: A non-numeric value encountered in /in/329VI on line 3 Warning: A non-numeric value encountered in /in/329VI on line 3
Output for 7.1.0 - 7.1.33
Notice: Use of undefined constant a - assumed 'a' in /in/329VI on line 3 Notice: Use of undefined constant b - assumed 'b' in /in/329VI on line 3 Warning: A non-numeric value encountered in /in/329VI on line 3 Warning: A non-numeric value encountered in /in/329VI on line 3
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
Notice: Use of undefined constant a - assumed 'a' in /in/329VI on line 3 Notice: Use of undefined constant b - assumed 'b' in /in/329VI on line 3

preferences:
206.26 ms | 402 KiB | 226 Q