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<?php $a = [1,2,3,4,5]; var_dump(array_map(function($val){ return $val * 2; }, new ArrayIterator($a)));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, ArrayIterator given in /in/4XQjD:5 Stack trace: #0 /in/4XQjD(5): array_map(Object(Closure), Object(ArrayIterator)) #1 {main} thrown in /in/4XQjD on line 5
Process exited with code 255.

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