SplDoublyLinkedList::count

(PHP 5 >= 5.3.0, PHP 7)

SplDoublyLinkedList::count — Counts the number of elements in the doubly linked list.

说明

public int SplDoublyLinkedList::count ( void )

参数

此函数没有参数。

返回值

Returns the number of elements in the doubly linked list.