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run code in 300+ PHP versions simultaneously
<?php declare(strict_types = 1); $results = array_walk($contributors, function(string $contributor) : string { return sprintf("%s, thank you very much for PHP7!", $contributor); }); echo implode("\n", $results);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: array_walk(): Argument #1 ($array) must be of type array, null given in /in/LA9WG:3 Stack trace: #0 /in/LA9WG(3): array_walk(NULL, Object(Closure)) #1 {main} thrown in /in/LA9WG on line 3
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Fatal error: Uncaught TypeError: array_walk(): Argument #1 ($array) must be of type array, null given in /in/LA9WG:5 Stack trace: #0 /in/LA9WG(5): array_walk(NULL, Object(Closure)) #1 {main} thrown in /in/LA9WG on line 5
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: array_walk() expects parameter 1 to be array, null given in /in/LA9WG:5 Stack trace: #0 /in/LA9WG(5): array_walk(NULL, Object(Closure)) #1 {main} thrown in /in/LA9WG on line 5
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/LA9WG on line 2 Parse error: syntax error, unexpected ':', expecting '{' in /in/LA9WG on line 3
Process exited with code 255.

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