SplDoublyLinkedList::setIteratorMode

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

SplDoublyLinkedList::setIteratorModeSets the mode of iteration

Description

public SplDoublyLinkedList::setIteratorMode(int $mode): int

Parameters

mode

There are two orthogonal sets of modes that can be set:

The default mode is: SplDoublyLinkedList::IT_MODE_FIFO | SplDoublyLinkedList::IT_MODE_KEEP

Warning

The direction of iteration can not be changed for SplStack and SplQueue classes, it is always SplDoublyLinkedList::IT_MODE_FIFO. Trying to modify it will result in a RuntimeException being thrown.

Return Values

Returns the different modes and flags that affect the iteration.