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    SplDoublyLinkedList::count

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

    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.

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