/** * Created by PhpStorm. * User: LAMP—Q哥 * Date: 2017/8/3 * Time: 12:58 */class Queue { ???private ???$_queue = []; ???protected ?$cache ?= null; ???protected ?$queuecachename; ???/** ????* 构造方法 ????* Queue constructor. ????* @param $queuename ????*/ ???public function __construct($queuename ) { ???????$this->cache = & Cache::instance(); ???????$this->queuecachename = ‘queue_‘.$queuename; ???????$result = $this->cache->get($this->queuecachename); ???????if(is_array($result)) { ???????????$this->_queue = $result; ???????} ???} ???/** ????* 将一个单元放入队列末尾 ????* @param $value ????* @return $this ????*/ ???public function enQueue($value) { ???????$this->_queue[]=$value; ???????$this->cache->set($this->queuecachename,$this->_queue); ???????return $this; ???} ???/** ????* 将队列开头的一个或多个单元移除 ????* @param int $num ????* @return array ????*/ ???public function sliceQueue($num = 1) { ???????if(count($this->_queue)<$num) { ???????????$num = count($this->_queue); ???????} ???????$output = array_slice($this->_queue,0,$num); ???????$this->cache->set($this->queuecachename,$this->_queue); ???????return $output; ???} ???/** ????* 将队列开头的单元移出队列 ????* @return mixed ????*/ ???public function deQueue() { ???????$entry = array_shift($this->_queue); ???????$this->cache->set($this->queuecachename,$this->_queue); ???????return $entry; ???} ???/** ????* 获取队列的长度 ????* @return int ????*/ ???public function size() { ???????return count($this->_queue); ???} ???/** ????* 获取队列中的第一个 ????* @return mixed ????*/ ???public function peek() { ???????return $this->_queue[0]; ???} ???/** ????* 返回队列中的一个或者多个单元 ????* @param $num ????* @return array ????*/ ???public function peeks($num){ ???????if(count($this->_queue)<$num) { ???????????$num = count($this->_queue); ???????} ???????return array_slice($this->_queue,0,$num); ???} ???/** ????* ?销毁队列 ????*/ ???public function destroy() { ???????$this->cache->remove($this->queuecachename); ???}}PHP队列类
原文地址：https://www.cnblogs.com/lovellll/p/10200483.html