PHP 7.1.24 Released

SplPriorityQueue::count

(PHP 5 >= 5.3.0, PHP 7)

SplPriorityQueue::countCounts the number of elements in the queue

说明

public int SplPriorityQueue::count ( void )

参数

此函数没有参数。

返回值

Returns the number of elements in the queue.

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xedin dot unknown at gmail dot com
2 months ago
After iteration, the queue will be empty. Therefore, `count()` will return 0. You can circumvent this by iterating over a clone, instead of the actual queue.

https://stackoverflow.com/questions/27464012/splpriorityqueuenext-is-removing-the-item
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