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run code in 150+ php & hhvm versions
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<?php $iterator = new ArrayIterator(); $iterator['a'] = 'xxx'; var_dump($iterator);
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
object(ArrayIterator)#1 (1) { ["storage":"ArrayIterator":private]=> array(1) { ["a"]=> string(3) "xxx" } }
Output for hhvm-3.10.0 - 3.13.2
object(ArrayIterator)#1 (2) { ["storage":"ArrayIterator":private]=> array(1) { ["a"]=> string(3) "xxx" } ["flags":"ArrayIterator":private]=> int(0) }
Output for 5.0.0 - 5.2.17
object(ArrayIterator)#1 (1) { ["a"]=> string(3) "xxx" }
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: arrayiterator in /in/gUJdS on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: arrayiterator in /in/gUJdS on line 3