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<?php function flatten(array $list) { $result = array(); array_walk_recursive($list, function($a) use (&$result) { $result[] = $a; }); return $result; } array_flatten([1, 2, 3, [4, 5, [6], 7], 8, 9, [10]]);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function array_flatten() in /in/sPcGD:10 Stack trace: #0 {main} thrown in /in/sPcGD on line 10
Process exited with code 255.

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