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SplDoublyLinkedList::unshift

(PHP 5 >= 5.3.0, PHP 7)

SplDoublyLinkedList::unshiftPrepends the doubly linked list with an element

说明

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

Prepends value at the beginning of the doubly linked list.

参数

value

The value to unshift.

返回值

没有返回值。