Redis是一个开源的使用ANSI C语言编写、支持网络、可基于内存亦可持久化的日志型、Key-Value数据库，并提供多种语言的API。
Redis支持的数据类型有 Stirng(字符串), List(列表), Hash(字典), Set(集合), Sorted Set(有序集合);
要让php能用上redis，首先就得安装redis扩展。
1.安装redis
git下载地址
https://github.com/MSOpenTech/redis/releases
2.测试redis
windows 运行（快捷键：windows键+R键），输入【cmd】命令，进入DOC操作系统窗口；
进入redis安装目录使用命令
2.1开启redis守护进程(进入redis安装目录)
redis-server.exe redis-windows-conf
2.2进入redis客户端(进入redis安装目录)
redis-cli.exe
3.安装php的redis扩展
下载地址
https://pecl.php.net/package/redis
根据phpinfo()信息选择适当的redis扩展压缩包
4.将redis扩展包的php_redis.dll和php_redis.pdb两个文件放在ext文件夹
5.修改php.ini文件
extension=php_redis.dll
6.验证是否开启redis扩展
查看phpinfo()信息，搜索redis
7.php连接并测试redis数据库(记得开启redis服务)
新建test.php
connect(&＃39;127.0.0.1&＃39;,6379); $redis->set(&＃39;name&＃39;,&＃39;klc&＃39;); echo $redis->get(&＃39;name&＃39;); ?>
对数据类型的操作
Strng(字符串):
set(&＃39;cat&＃39;, 111); //获取一个字符串的值 echo $redis->get(&＃39;cat&＃39;); // 111 // 重复set $redis->set(&＃39;cat&＃39;, 222); echo $redis->get(&＃39;cat&＃39;); // 222
List(列表):
//列表 //存储数据到列表中 $redis->lpush(&＃39;list&＃39;, &＃39;html&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;css&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;php&＃39;); //获取列表中所有的值 $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; //从右侧加入一个 $redis->rpush(&＃39;list&＃39;, &＃39;mysql&＃39;); $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; //从左侧弹出一个 $redis->lpop(&＃39;list&＃39;); $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; //从右侧弹出一个 $redis->rpop(&＃39;list&＃39;); $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; // 结果 // Array ( [0] => php [1] => css [2] => html ) // Array ( [0] => php [1] => css [2] => html [3] => mysql ) // Array ( [0] => css [1] => html [2] => mysql ) // Array ( [0] => css [1] => html )
connect(&＃39;127.0.0.1&＃39;, 6379); //列表 //存储数据到列表中 $redis->lpush(&＃39;list&＃39;, &＃39;html&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;css&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;php&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;mysql&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;Javascript&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;ajax&＃39;); //获取列表中所有的值 $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; //获取列表的长度 $length = $redis->lsize(&＃39;list&＃39;); echo $length;echo &＃39;
&＃39;; //返回列表key中index位置的值 echo $redis->lget(&＃39;list&＃39;, 2);echo &＃39;
&＃39;; echo $redis->lindex(&＃39;list&＃39;, 2);echo &＃39;
&＃39;; //设置列表中index位置的值 echo $redis->lset(&＃39;list&＃39;, 2, &＃39;linux&＃39;);echo &＃39;
&＃39;; $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; //返回key中从start到end位置间的元素 $list = $redis->lrange(&＃39;list&＃39;, 0, 2); print_r($list);echo &＃39;
&＃39;; $list = $redis->lgetrange(&＃39;list&＃39;, 0, 2); print_r($list);echo &＃39;
&＃39;; //截取链表中start到end的元素 //截取列表后列表发生变化,列表保留截取的元素,其余的删除 $list = $redis->ltrim(&＃39;list&＃39;, 0, 1); print_r($list);echo &＃39;
&＃39;; $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; // 结果 // Array ( [0] => ajax [1] => Javascript [2] => mysql [3] => php [4] => css [5] => html ) // 6 // mysql // mysql // 1 // Array ( [0] => ajax [1] => Javascript [2] => linux [3] => php [4] => css [5] => html ) // Array ( [0] => ajax [1] => Javascript [2] => linux ) // Array ( [0] => ajax [1] => Javascript [2] => linux ) // 1 // Array ( [0] => ajax [1] => Javascript )
connect(&＃39;127.0.0.1&＃39;, 6379); //列表 //存储数据到列表中 $redis->lpush(&＃39;list&＃39;, &＃39;html&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;html&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;html&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;css&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;php&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;mysql&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;Javascript&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;html&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;html&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;html&＃39;); $redis->lpush(&＃39;list&＃39;, &＃39;ajax&＃39;); //获取列表中所有的值 $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; //删除列表中count个值为value的元素 //从左向右删 $redis->lrem(&＃39;list&＃39;, &＃39;html&＃39;, 2); $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; //从右向左删 $redis->lrem(&＃39;list&＃39;, &＃39;html&＃39;, -2); $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; //删除所有 $redis->lrem(&＃39;list&＃39;, &＃39;html&＃39;, 0); $list = $redis->lrange(&＃39;list&＃39;, 0, -1); print_r($list);echo &＃39;
&＃39;; // 结果 // Array ( [0] => ajax [1] => html [2] => html [3] => html [4] => Javascript [5] => mysql [6] => php [7] => css [8] => html [9] => html [10] => html ) // Array ( [0] => ajax [1] => html [2] => Javascript [3] => mysql [4] => php [5] => css [6] => html [7] => html [8] => html ) // Array ( [0] => ajax [1] => html [2] => Javascript [3] => mysql [4] => php [5] => css [6] => html ) // Array ( [0] => ajax [1] => Javascript [2] => mysql [3] => php [4] => css )
Hash(字典):
connect(&＃39;127.0.0.1&＃39;, 6379); //字典 //给hash表中某个key设置value //如果没有则设置成功,返回1,如果存在会替换原有的值,返回0,失败返回0 echo $redis->hset(&＃39;hash&＃39;, &＃39;cat&＃39;, &＃39;cat&＃39;);echo &＃39;
&＃39;; echo $redis->hset(&＃39;hash&＃39;, &＃39;cat&＃39;, &＃39;cat&＃39;);echo &＃39;
&＃39;; echo $redis->hset(&＃39;hash&＃39;, &＃39;cat&＃39;, &＃39;cat1&＃39;);echo &＃39;
&＃39;; echo $redis->hset(&＃39;hash&＃39;, &＃39;dog&＃39;, &＃39;dog&＃39;);echo &＃39;
&＃39;; echo $redis->hset(&＃39;hash&＃39;, &＃39;bird&＃39;, &＃39;bird&＃39;);echo &＃39;
&＃39;; echo $redis->hset(&＃39;hash&＃39;, &＃39;monkey&＃39;, &＃39;monkey&＃39;);echo &＃39;
&＃39;; //获取hash中某个key的值 echo $redis->hget(&＃39;hash&＃39;, &＃39;cat&＃39;);echo &＃39;
&＃39;; //获取hash中所有的keys $arr = $redis->hkeys(&＃39;hash&＃39;); print_r($arr);echo &＃39;
&＃39;; //获取hash中所有的值 顺序是随机的 $arr = $redis->hvals(&＃39;hash&＃39;); print_r($arr);echo &＃39;
&＃39;; //获取一个hash中所有的key和value 顺序是随机的 $arr = $redis->hgetall(&＃39;hash&＃39;); print_r($arr);echo &＃39;
&＃39;; //获取hash中key的数量 echo $redis->hlen(&＃39;hash&＃39;);echo &＃39;
&＃39;; //删除hash中一个key 如果表不存在或key不存在则返回false echo $redis->hdel(&＃39;hash&＃39;, &＃39;dog&＃39;);echo &＃39;
&＃39;; var_dump($redis->hdel(&＃39;hash&＃39;, &＃39;rabbit&＃39;));echo &＃39;
&＃39;; // 结果 // 1 // 0 // 0 // 1 // 1 // 1 // cat1 // Array ( [0] => cat [1] => dog [2] => bird [3] => monkey ) // Array ( [0] => cat1 [1] => dog [2] => bird [3] => monkey ) // Array ( [cat] => cat1 [dog] => dog [bird] => bird [monkey] => monkey ) // 4 // 1 // int(0) connect(&＃39;127.0.0.1&＃39;, 6379); //字典 //批量设置多个key的值 $arr = [1=>1, 2=>2, 3=>3, 4=>4, 5=>5]; $redis->hmset(&＃39;hash&＃39;, $arr); print_r($redis->hgetall(&＃39;hash&＃39;));echo &＃39;
&＃39;; // 批量获得额多个key的值 $arr = [1, 2, 3, 5]; $hash = $redis->hmget(&＃39;hash&＃39;, $arr); print_r($hash);echo &＃39;
&＃39;; //检测hash中某个key知否存在 echo $redis->hexists(&＃39;hash&＃39;, &＃39;1&＃39;);echo &＃39;
&＃39;; var_dump($redis->hexists(&＃39;hash&＃39;, &＃39;cat&＃39;));echo &＃39;
&＃39;; print_r($redis->hgetall(&＃39;hash&＃39;));echo &＃39;
&＃39;; //给hash表中key增加一个整数值 $redis->hincrby(&＃39;hash&＃39;, &＃39;1&＃39;, 1); print_r($redis->hgetall(&＃39;hash&＃39;));echo &＃39;
&＃39;; //给hash中的某个key增加一个浮点值 $redis->hincrbyfloat(&＃39;hash&＃39;, 2, 1.3); print_r($redis->hgetall(&＃39;hash&＃39;));echo &＃39;
&＃39;; //结果 // Array ( [1] => 1 [2] => 2 [3] => 3 [4] => 4 [5] => 5 ) // Array ( [1] => 1 [2] => 2 [3] => 3 [5] => 5 ) // 1 // bool(false) // Array ( [1] => 1 [2] => 2 [3] => 3 [4] => 4 [5] => 5 ) // Array ( [1] => 2 [2] => 2 [3] => 3 [4] => 4 [5] => 5 ) // Array ( [1] => 2 [2] => 3.3 [3] => 3 [4] => 4 [5] => 5 )
Set(集合):
connect(&＃39;127.0.0.1&＃39;, 6379); //集合 // 添加一个元素 echo $redis->sadd(&＃39;set&＃39;, &＃39;cat&＃39;);echo &＃39;
&＃39;; echo $redis->sadd(&＃39;set&＃39;, &＃39;cat&＃39;);echo &＃39;
&＃39;; echo $redis->sadd(&＃39;set&＃39;, &＃39;dog&＃39;);echo &＃39;
&＃39;; echo $redis->sadd(&＃39;set&＃39;, &＃39;rabbit&＃39;);echo &＃39;
&＃39;; echo $redis->sadd(&＃39;set&＃39;, &＃39;bear&＃39;);echo &＃39;
&＃39;; echo $redis->sadd(&＃39;set&＃39;, &＃39;horse&＃39;);echo &＃39;
&＃39;; // 查看集合中所有的元素 $set = $redis->smembers(&＃39;set&＃39;); print_r($set);echo &＃39;
&＃39;; //删除集合中的value echo $redis->srem(&＃39;set&＃39;, &＃39;cat&＃39;);echo &＃39;
&＃39;; var_dump($redis->srem(&＃39;set&＃39;, &＃39;bird&＃39;));echo &＃39;
&＃39;; $set = $redis->smembers(&＃39;set&＃39;); print_r($set);echo &＃39;
&＃39;; //判断元素是否是set的成员 var_dump($redis->sismember(&＃39;set&＃39;, &＃39;dog&＃39;));echo &＃39;
&＃39;; var_dump($redis->sismember(&＃39;set&＃39;, &＃39;bird&＃39;));echo &＃39;
&＃39;; //查看集合中成员的数量 echo $redis->scard(&＃39;set&＃39;);echo &＃39;
&＃39;; //移除并返回集合中的一个随机元素(返回被移除的元素) echo $redis->spop(&＃39;set&＃39;);echo &＃39;
&＃39;; print_r($redis->smembers(&＃39;set&＃39;));echo &＃39;
&＃39;; // 结果 // 1 // 0 // 1 // 1 // 1 // 1 // Array ( [0] => rabbit [1] => cat [2] => bear [3] => dog [4] => horse ) // 1 // int(0) // Array ( [0] => dog [1] => rabbit [2] => horse [3] => bear ) // bool(true) // bool(false) // 4 // bear // Array ( [0] => dog [1] => rabbit [2] => horse )
connect(&＃39;127.0.0.1&＃39;, 6379); //集合 $redis->sadd(&＃39;set&＃39;, &＃39;horse&＃39;); $redis->sadd(&＃39;set&＃39;, &＃39;cat&＃39;); $redis->sadd(&＃39;set&＃39;, &＃39;dog&＃39;); $redis->sadd(&＃39;set&＃39;, &＃39;bird&＃39;); $redis->sadd(&＃39;set2&＃39;, &＃39;fish&＃39;); $redis->sadd(&＃39;set2&＃39;, &＃39;dog&＃39;); $redis->sadd(&＃39;set2&＃39;, &＃39;bird&＃39;); print_r($redis->smembers(&＃39;set&＃39;));echo &＃39;
&＃39;; print_r($redis->smembers(&＃39;set2&＃39;));echo &＃39;
&＃39;; //返回集合的交集 print_r($redis->sinter(&＃39;set&＃39;, &＃39;set2&＃39;));echo &＃39;
&＃39;; //执行交集操作 并结果放到一个集合中 $redis->sinterstore(&＃39;output&＃39;, &＃39;set&＃39;, &＃39;set2&＃39;); print_r($redis->smembers(&＃39;output&＃39;));echo &＃39;
&＃39;; //返回集合的并集 print_r($redis->sunion(&＃39;set&＃39;, &＃39;set2&＃39;));echo &＃39;
&＃39;; //执行并集操作 并结果放到一个集合中 $redis->sunionstore(&＃39;output&＃39;, &＃39;set&＃39;, &＃39;set2&＃39;); print_r($redis->smembers(&＃39;output&＃39;));echo &＃39;
&＃39;; //返回集合的差集 print_r($redis->sdiff(&＃39;set&＃39;, &＃39;set2&＃39;));echo &＃39;
&＃39;; //执行差集操作 并结果放到一个集合中 $redis->sdiffstore(&＃39;output&＃39;, &＃39;set&＃39;, &＃39;set2&＃39;); print_r($redis->smembers(&＃39;output&＃39;));echo &＃39;
&＃39;; // 结果 // Array ( [0] => cat [1] => dog [2] => bird [3] => horse ) // Array ( [0] => bird [1] => dog [2] => fish ) // Array ( [0] => bird [1] => dog ) // Array ( [0] => dog [1] => bird ) // Array ( [0] => cat [1] => dog [2] => bird [3] => horse [4] => fish ) // Array ( [0] => cat [1] => dog [2] => bird [3] => horse [4] => fish ) // Array ( [0] => horse [1] => cat ) // Array ( [0] => horse [1] => cat )
Sorted Set(有序集合):
connect(&＃39;127.0.0.1&＃39;, 6379); //有序集合 //添加元素 echo $redis->zadd(&＃39;set&＃39;, 1, &＃39;cat&＃39;);echo &＃39;
&＃39;; echo $redis->zadd(&＃39;set&＃39;, 2, &＃39;dog&＃39;);echo &＃39;
&＃39;; echo $redis->zadd(&＃39;set&＃39;, 3, &＃39;fish&＃39;);echo &＃39;
&＃39;; echo $redis->zadd(&＃39;set&＃39;, 4, &＃39;dog&＃39;);echo &＃39;
&＃39;; echo $redis->zadd(&＃39;set&＃39;, 4, &＃39;bird&＃39;);echo &＃39;
&＃39;; //返回集合中的所有元素 print_r($redis->zrange(&＃39;set&＃39;, 0, -1));echo &＃39;
&＃39;; print_r($redis->zrange(&＃39;set&＃39;, 0, -1, true));echo &＃39;
&＃39;; //返回元素的score值 echo $redis->zscore(&＃39;set&＃39;, &＃39;dog&＃39;);echo &＃39;
&＃39;; //返回存储的个数 echo $redis->zcard(&＃39;set&＃39;);echo &＃39;
&＃39;; //删除指定成员 $redis->zrem(&＃39;set&＃39;, &＃39;cat&＃39;); print_r($redis->zrange(&＃39;set&＃39;, 0, -1));echo &＃39;
&＃39;; //返回集合中介于min和max之间的值的个数 print_r($redis->zcount(&＃39;set&＃39;, 3, 5));echo &＃39;
&＃39;; //返回有序集合中score介于min和max之间的值 print_r($redis->zrangebyscore(&＃39;set&＃39;, 3, 5));echo &＃39;
&＃39;; print_r($redis->zrangebyscore(&＃39;set&＃39;, 3, 5, [&＃39;withscores&＃39;=>true]));echo &＃39;
&＃39;; //返回集合中指定区间内所有的值 print_r($redis->zrevrange(&＃39;set&＃39;, 1, 2));echo &＃39;
&＃39;; print_r($redis->zrevrange(&＃39;set&＃39;, 1, 2, true));echo &＃39;
&＃39;; //有序集合中指定值的socre增加 echo $redis->zscore(&＃39;set&＃39;, &＃39;dog&＃39;);echo &＃39;
&＃39;; $redis->zincrby(&＃39;set&＃39;, 2, &＃39;dog&＃39;); echo $redis->zscore(&＃39;set&＃39;, &＃39;dog&＃39;);echo &＃39;
&＃39;; //移除score值介于min和max之间的元素 print_r($redis->zrange(&＃39;set&＃39;, 0, -1, true));echo &＃39;
&＃39;; print_r($redis->zremrangebyscore(&＃39;set&＃39;, 3, 4));echo &＃39;
&＃39;; print_r($redis->zrange(&＃39;set&＃39;, 0, -1, true));echo &＃39;
&＃39;; //结果 // 1 // 0 // 0 // 0 // 0 // Array ( [0] => cat [1] => fish [2] => bird [3] => dog ) // Array ( [cat] => 1 [fish] => 3 [bird] => 4 [dog] => 4 ) // 4 // 4 // Array ( [0] => fish [1] => bird [2] => dog ) // 3 // Array ( [0] => fish [1] => bird [2] => dog ) // Array ( [fish] => 3 [bird] => 4 [dog] => 4 ) // Array ( [0] => bird [1] => fish ) // Array ( [bird] => 4 [fish] => 3 ) // 4 // 6 // Array ( [fish] => 3 [bird] => 4 [dog] => 6 ) // 2 // Array ( [dog] => 6 )
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