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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 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
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.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Uncaught exception 'InvalidArgumentException' with message '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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