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<?php var_dump(array_key_exists('foo', null));
Output for git.master_jit, git.master, rfc.property-hooks
Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given in /in/cs7b9:2 Stack trace: #0 {main} thrown in /in/cs7b9 on line 2
Process exited with code 255.

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