PHP Manual
PriorityQueue
Returns the number of values in the queue

Ds\PriorityQueue::count

(PECL ds >= 1.0.0)

Ds\PriorityQueue::count — Returns the number of values in the queue

See Countable::count()

関連キーワード: 　Returns, values, queue, the, of, in, PriorityQueue, Ds, count, copy