(PECL pht >= 0.0.1)
pht\Queue::pop — Pops a value off of the front of a queue
This method will remove a value from the front of the queue (in constant time). Attempting to pop a value from an empty queue will result in an Error exception.
此函数没有参数。
The value removed from the queue.
Example #1 Popping a value from a queue
<?php
use pht\Queue;
$queue = new Queue();
$queue->push(1);
var_dump($queue->pop());
以上例程会输出：
int(1)