3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a($a) { return $a; } a();
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught ArgumentCountError: Too few arguments to function a(), 0 passed in /in/bJGGn on line 8 and exactly 1 expected in /in/bJGGn:3 Stack trace: #0 /in/bJGGn(8): a() #1 {main} thrown in /in/bJGGn on line 3
Process exited with code 255.
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20
Warning: Missing argument 1 for a(), called in /in/bJGGn on line 8 and defined in /in/bJGGn on line 3 Notice: Undefined variable: a in /in/bJGGn on line 5

preferences:
163.23 ms | 402 KiB | 221 Q