SplQueue::setIteratorMode
Sets the mode of iteration
Description
void SplQueue::setIteratorMode
( int $mode
)
Parameters
-
mode
-
There is only one iteration parameter you can modify.
-
The behavior of the iterator (either one or the other):
SplDoublyLinkedList::IT_MODE_DELETE (Elements are deleted by the iterator)SplDoublyLinkedList::IT_MODE_KEEP (Elements are traversed by the iterator)
The default mode is: SplDoublyLinkedList::IT_MODE_FIFO | SplDoublyLinkedList::IT_MODE_KEEP
Warning
The direction of iteration can not be changed for SplQueues, it is always SplDoublyLinkedList::IT_MODE_FIFO.
Return Values
No value is returned.
Errors/Exceptions
Throws a RuntimeException on trying to change the direction of iteration by using SplDoublyLinkedList::IT_MODE_LIFO.