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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https://www.php.net/manual/en/spldoublylinkedlist.valid.php