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SplDoublyLinkedList::setIteratorMode

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

SplDoublyLinkedList::setIteratorMode — Sets the mode of iteration

说明

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

参数

mode

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

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

警告

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.

返回值

Returns the different modes and flags that affect the iteration.