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
Description
Parameters
This function has no parameters.
Return Values
The value of the last node.
Errors/Exceptions
Throws RuntimeException when the data-structure is empty.