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<?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", $results);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: array_walk(): Argument #1 ($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.

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