SplDoublyLinkedList::isEmpty
SplDoublyLinkedList::next
SplDoublyLinkedList
PHP Manual

# SplDoublyLinkedList::key

(PHP 5 >= 5.3.0)

SplDoublyLinkedList::key — Return current node index

### Beschreibung

mixed SplDoublyLinkedList::key ( void )

This function returns the current node index

### Parameter-Liste

Diese Funktion hat keine Parameter.

### Rückgabewerte

The current node index.

SplDoublyLinkedList::isEmpty
SplDoublyLinkedList::next
SplDoublyLinkedList
PHP Manual