SplDoublyLinkedList
PHP Manual

SplDoublyLinkedList::unshift

(PHP 5 >= 5.3.0, PHP 7)

SplDoublyLinkedList::unshiftPrepends the doubly linked list with an element

Description

public void SplDoublyLinkedList::unshift ( mixed $value )

Prepends value at the beginning of the doubly linked list.

Parameters

value

The value to unshift.

Return Values

No value is returned.


SplDoublyLinkedList
PHP Manual