SplQueue::setIteratorMode
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplQueue::setIteratorMode — Sets the mode of iteration
Description
public SplQueue::setIteratorMode(int
$mode): voidParameters
-
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_KEEPWarningThe direction of iteration can not be changed for SplQueues, it is always
SplDoublyLinkedList::IT_MODE_FIFO. -
The behavior of the iterator (either one or the other):
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.
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