SplDoublyLinkedList::valid

(PHP 5 >= 5.3.0)

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

public bool SplDoublyLinkedList::valid ( void )

Checks if the doubly linked list contains any more nodes.

此函数没有参数。

Returns TRUE if the doubly linked list contains any more nodes, FALSE otherwise.