Redis 几种应用场景

字符串缓存

<?php$redis = new Redis();$redis->connect('127.0.0.1',6379);$strKey = 'test';$strKey1 ='test1';//set$arrCache = ['name'=>'mysteryH','sex'=>'男','age'=>22];$redis->set($strKey,json_encode($arrCache));$redis->expire($strKey,300);//设置过期时间$json_data = $redis->get($strKey);$data = json_decode($json_data);print_r($data->name);//hset$arrWeb =['google'=>['google.com','google.com.hk']];$redis->hSet($strKey1,'google',json_encode($arrWeb['google']));$json_data = $redis->hGet($strKey1,'google');$data = json_decode($json_data);print_r($data);

简单消息队列

<?php$redis = new Redis();$redis->connect('127.0.0.1',6379);$strKey = 'queue';//进队$redis->rPush($strKey,json_encode(['id'=>1,'name'=>'name1']));$redis->rPush($strKey,json_encode(['id'=>2,'name'=>'name2']));$redis->rPush($strKey,json_encode(['id'=>3,'name'=>'name3']));$redis->rPush($strKey,json_encode(['id'=>4,'name'=>'name4']));echo "---进队成功---<br>";//查看队列$strCount = $redis->lRange($strKey,0,-1);echo "当前数据：";print_r($strCount);//出队$info = $redis->lPop($strKey);echo "<br>---".$info."---出队成功<br>";//查看队列$strCount = $redis->lRange($strKey,0,-1);echo "当前数据：";print_r($strCount);

发布订阅

发布：

<?phpini_set('default_socket_timeout',-1);$redis = new Redis();$redis->connect('127.0.0.1',6379);$strChannel = 'channel';$redis->publish($strChannel,"来自{$strChannel}的推送");echo "-------{$strChannel}-------消息推送成功";

订阅：

<?phpini_set('default_socket_timeout',-1);$redis = new Redis();$redis->connect('127.0.0.1',6379);$strChannel = 'channel';//订阅echo "等待-------{$strChannel}-------消息推送";$redis->subscribe([$strChannel],'callback');function callback($instance, $channelName, $message){echo $message;}

排行榜

<?php$redis = new Redis();$redis->connect('127.0.0.1',6379);$strKey = 'rank';$redis->zAdd($strKey,'50',json_encode(['name'=>'name1']));$redis->zAdd($strKey,'100',json_encode(['name'=>'name2']));$redis->zAdd($strKey,'20',json_encode(['name'=>'name3']));$redis->zAdd($strKey,'60',json_encode(['name'=>'name4']));$redis->zAdd($strKey,'40',json_encode(['name'=>'name5']));$redis->zAdd($strKey,'80',json_encode(['name'=>'name6']));$data1 = $redis->zRevRange($strKey,0,-1,true);echo "从大到小排序：<br>";print_r($data1);$data2 = $redis->zRange($strKey,0,-1,true);echo "从小到大排序：<br>";print_r($data2);