GoLang SplDoublyLinkedList::setIteratorMode

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PHP SplDoublyLinkedList::setIteratorMode

PHP original manual for SplDoublyLinkedList::setIteratorMode [ show | php.net ]


(PHP 5 >= 5.3.0, PHP 7)

SplDoublyLinkedList::setIteratorModeSets the mode of iteration


public void SplDoublyLinkedList::setIteratorMode ( int $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

Return Values

No value is returned.