1--TEST-- 2SPL: ArrayIterator with NULL key 3--FILE-- 4<?php 5 6$ar = new ArrayIterator(array(NULL=>NULL)); 7@var_dump($ar); 8var_dump($ar->getArrayCopy()); 9 10?> 11===DONE=== 12<?php exit(0); ?> 13--EXPECTF-- 14object(ArrayIterator)#%d (1) { 15 ["storage":"ArrayIterator":private]=> 16 array(1) { 17 [""]=> 18 NULL 19 } 20} 21array(1) { 22 [""]=> 23 NULL 24} 25===DONE=== 26