(PHP 5 >= 5.3.0)
SplStack::setIteratorMode — Sets the mode of iteration
There is only one iteration parameter you can modify.
The default mode is 0x2 : SplDoublyLinkedList::IT_MODE_LIFO | SplDoublyLinkedList::IT_MODE_KEEP
The direction of iteration can no longer be changed for SplStacks. Trying to do so will result in a RuntimeException being thrown.
No value is returned.