PHP Manual
SplPriorityQueue
Counts the number of elements in the queue

SplPriorityQueue::count

(PHP 5 >= 5.3.0, PHP 7)

SplPriorityQueue::count — Counts the number of elements in the queue

说明

public SplPriorityQueue::count ( void ) : int

参数

此函数没有参数。

返回值

Returns the number of elements in the queue.

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