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SplDoublyLinkedList::setIteratorMode

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

SplDoublyLinkedList::setIteratorMode — Sets the mode of iteration

說(shuō)明

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

參數

mode

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

  • The direction of the iteration (either one or the other):
    • SplDoublyLinkedList::IT_MODE_LIFO (Stack style)
    • SplDoublyLinkedList::IT_MODE_FIFO (Queue style)
  • 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

返回值

Returns the different modes and flags that affect the iteration.

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