php结合redis高并发下发帖、发微博的实现方法

<?php//此处需要安装phpredis扩展$redis = new Redis();$redis->connect('127.0.0.1', 6379);$redis->auth("php001");//连接redis$web_info= array(	'uid' => $_REQUEST[uid], //发布者id	'username' => $_REQUEST[username],//发布者用户名	'content' =>$_REQUEST[content],//微博内容);//将数组转成json来存储$list = json_encode($web_info);//lpush向KEY对应的头部添加一个字符串元素$redis->lpush('weibo_lists',$list);$redis->close();var_dump($list);?>

<?phpclass Pdodb{	public function post($uid='',$username='',$content=''){		try{			$dsn = "mysql:localhost;dbname=localhost;dbname=big";			$db = new PDO($dsn,'big','123456');				$db->exec("SET NAMES UTF8");			$sql ="insert into ih_weibo(uid,username,content)values('$uid','$username','$content')";			//echo $sql;			$db->exec($sql);		}catch(PDOException $e){			echo $e->getMessage();		}	}}

<?phprequire_once 'Pdodb.class.php';set_time_limit(0); // 取消脚本运行时间的超时上限$pdo = new Pdodb();$redis = new Redis();$redis->connect('127.0.0.1', 6379);while (true) {	//返回的列表的大小。如果列表不存在或为空，该命令返回0。如果该键不是列表，该命令返回false	if($redis -> lsize('weibo_lists')){		//从LIST头部删除并返回删除数据		$info = $redis->rpop('weibo_lists');		$info = json_decode($info);		$pdo->post($info->uid,$info->username,$info->content);	}	$redis->close();	sleep(10);//延时10秒}