SplDoublyLinkedList::bottom

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

SplDoublyLinkedList::bottom — Peeks at the node from the beginning of the doubly linked list

public function SplDoublyLinkedList::bottom(): mixed

This function has no parameters.

The value of the first node.

Throws RuntimeException when the data-structure is empty.