SplDoublyLinkedList::count

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

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

說明

public SplDoublyLinkedList::count(): int

參數(shù)

此函數(shù)沒有參數(shù)。

返回值

Returns the number of elements in the doubly linked list.