SplDoublyLinkedList::unshift
(PHP 5 >= 5.3.0, PHP 7)
SplDoublyLinkedList::unshift — Prepends the doubly linked list with an element
说明
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。