Php/docs/spldoublylinkedlist.count

• PHP Manual
• SplDoublyLinkedList
• Counts the number of elements in the doubly linked list

SplDoublyLinkedList::count

(PHP 5 >= 5.3.0, PHP 7)

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

说明

public SplDoublyLinkedList::count ( ) : int

参数

此函数没有参数。

返回值

Returns the number of elements in the doubly linked list.