分享、学习、成长

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redis实现队列操作

e:/www/task.php

<?php
class Task{
	//一个成员
	protected $redis;
	/**
	 * 初始化
	 */
	public function __construct(){
		$this->redis = new \Redis();
		$this->redis->connect('127.0.0.1' , '6379');
	}

	/**
	* 创建任务
	* @return [type] [description]
	*/
	public function createTask($data = array()){
		//处理数据
		//加入队列,注意task是一个唯一的键,value可以为json数据,
		//lpush是redis 的列表
		$this->redis->lpush('task' , json_encode($data));
		//如果有需要可以设置key过期时间,过期时间为30秒
		//$this->redis->expire('user' , 30);
	}

	/**
	* 执行任务
	* @return [type] [description]
	*/
	public function execTask(){
		//处理队列
		//统计长度
		$length = $this->redis->llen('task');
		for($i = 0 ; $i < $length ; $i ++){
			//取出最后一个
			$item = $this->redis->rpop('task');
			//处理一系列的逻辑
			var_dump($item);
			//可以选择睡眠一秒
			//sleep(1);
		}
	}
}

e:/www/index.php

<?php
require_once 'task.php';
$task = new \Task();
$task->createTask(array('uid' => 1 , 'content' => '谢谢你的花'));
$task->createTask(array('uid' => 2 , 'content' => '我来看看'));

e:/www/exec.php

<?php
require_once 'task.php';
$task = new \Task();
$task->execTask();

运行结果为

string(52) "{"uid":1,"content":"\u8c22\u8c22\u4f60\u7684\u82b1"}"
string(46) "{"uid":2,"content":"\u6211\u6765\u770b\u770b"}"

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