SplPriorityQueue::top

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

SplPriorityQueue::top — Peeks at the node from the top of the queue

说明

public SplPriorityQueue::top ( ) : mixed

参数

此函数没有参数。

返回值

The value or priority (or both) of the top node, depending on the extract flag.