csu3_am335x/EVSE/GPL/php-8.1.12/ext/spl/tests/iterator_049.phpt

--TEST--
SPL: ArrayIterator with NULL key
--FILE--
<?php

$ar = new ArrayIterator(array(NULL=>NULL));
@var_dump($ar);
var_dump($ar->getArrayCopy());

?>
--EXPECTF--
object(ArrayIterator)#%d (1) {
  ["storage":"ArrayIterator":private]=>
  array(1) {
    [""]=>
    NULL
  }
}
array(1) {
  [""]=>
  NULL
}