(PECL pht >= 0.0.1)
pht\Queue::size — Gets the size of the queue
Returns the current size of the queue. This operation requires a pht\Queue's mutex lock to be held if it is being used by multiple threads.
此函数没有参数。
The size of the queue.
Example #1 Getting a queue's size
<?php
use pht\Queue;
$queue = new Queue();
$queue->push(1);
$queue->push(1);
var_dump($queue->size());
以上例程会输出：
int(2)