= 5.3.0, PHP 7, PHP 8)SplDoublyLinkedList::unshift — Prepends the doubly linked list with an element說(shuō)明public SplDo">

SplDoublyLinkedList::unshift

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

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

說(shuō)明

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

Prepends value at the beginning of the doubly linked list.

參數(shù)

value

The value to unshift.

返回值

沒有返回值。