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<?php $a = []; $b = null; $res = array_merge($a, $b); var_dump($res);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: array_merge(): Argument #2 must be of type array, null given in /in/GWTJF:5 Stack trace: #0 /in/GWTJF(5): array_merge(Array, NULL) #1 {main} thrown in /in/GWTJF on line 5
Process exited with code 255.

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