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SplDoublyLinkedList
PHP Manual

SplDoublyLinkedList::key

(No version information available, might be only in CVS)

SplDoublyLinkedList::key — Return current node index

Description

mixed SplDoublyLinkedList::key ( void )

This function returns the current node index

Parameters

This function has no parameters.

Return Values

The current node index.

SplDoublyLinkedList
PHP Manual