PHP Manual
SplDoublyLinkedList
Check whether the doubly linked list contains more nodes

SplDoublyLinkedList::valid

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

SplDoublyLinkedList::valid — Check whether the doubly linked list contains more nodes

Description

public SplDoublyLinkedList::valid(): bool

Checks if the doubly linked list contains any more nodes.

Parameters

This function has no parameters.

Return Values

Returns true if the doubly linked list contains any more nodes, false otherwise.

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