PHP - Manual: SplPriorityQueue::valid
2024-11-14
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplPriorityQueue::valid — Check whether the queue contains more nodes
Checks if the queue contains any more nodes.
此函数没有参数。
Returns true
if the queue contains any more nodes, false
otherwise.
官方地址:https://www.php.net/manual/en/splpriorityqueue.valid.php