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<?php $a1 = [1, 2, 3]; $a2 = [4, 7, 10]; $a3 = [5, 6, 8, 9]; $it1 = new ArrayIterator($a1); $it2 = new ArrayIterator($a2); $it3 = new ArrayIterator($a3); $m = new ArrayIterator([$it1, $it2, $it3]); foreach(new \RecursiveIteratorIterator($m) as $v) { var_dump($v); }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught InvalidArgumentException: An instance of RecursiveIterator or IteratorAggregate creating it is required in /in/vPOrA:15 Stack trace: #0 /in/vPOrA(15): RecursiveIteratorIterator->__construct(Object(ArrayIterator)) #1 {main} thrown in /in/vPOrA on line 15
Process exited with code 255.

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