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SplDoublyLinkedList::top

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

SplDoublyLinkedList::top — Peeks at the node from the end of the doubly linked list

说明

public SplDoublyLinkedList::top(): mixed

参数

此函数没有参数。

返回值

The value of the last node.

错误／异常

Throws RuntimeException when the data-structure is empty.