SplDoublyLinkedList::unshift

(PHP 5 >= 5.3.0, PHP 7)

SplDoublyLinkedList::unshift — Prepends the doubly linked list with an element

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public SplDoublyLinkedList::unshift ( mixed $value ) : void

Prepends value at the beginning of the doubly linked list.

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value

The value to unshift.

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