SplPriorityQueue
PHP Manual

SplPriorityQueue::valid

(PHP 5 >= 5.3.0)

SplPriorityQueue::validCheck whether the queue contains more nodes

Description

bool SplPriorityQueue::valid ( void )

Checks if the queue contains any more nodes.

Parameters

This function has no parameters.

Return Values

Returns TRUE if the queue contains any more nodes, FALSE otherwise.


SplPriorityQueue
PHP Manual