3v4l.org

run code in 300+ PHP versions simultaneously
<?php ob_start();phpcredits();$x=preg_grep("/^Il/",explode("\n",ob_get_clean()));print md5(implode("", array_map(function($x)use(&$c) {$r=$x^$c;$c=$x;return $r;},str_split(reset($x)))));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: Unsupported operand types: string ^ null in /in/6kSCh:3 Stack trace: #0 [internal function]: {closure}('I') #1 /in/6kSCh(3): array_map(Object(Closure), Array) #2 {main} thrown in /in/6kSCh on line 3
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: A non-numeric value encountered in /in/6kSCh on line 3 50ae85eecff8b5854ab029a879a683f2
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Warning: A non-numeric value encountered in /in/6kSCh on line 3 6513db9acee025220be34908789ffb22
Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.31
6513db9acee025220be34908789ffb22
Output for 5.5.0 - 5.5.38
287ba57aa7451821c495d3de19a7e585
Output for 5.4.0 - 5.4.45
60ab4e2595d9f3d5c583df6a5516b7da

preferences:
220.67 ms | 401 KiB | 366 Q