本文实例讲述了PHP操作Redis数据库常用方法。分享给大家供大家参考，具体如下：

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);

redis版本是Redis 2.6.12 系统是在Windows+Apache2.4+php5.6

连接:

//实例化redis$redis = new Redis();//连接$redis->connect("127.0.0.1", 6379);//检测是否连接成功echo "Server is running: " . $redis->ping();// 输出结果 Server is running: +PONG

Strng(字符串):

// 设置一个字符串的值$redis->set("cat", 111);//获取一个字符串的值echo $redis->get("cat"); // 111// 重复set$redis->set("cat", 222);echo $redis->get("cat"); // 222

List(列表):

//列表//存储数据到列表中$redis->lpush("list", "html");$redis->lpush("list", "css");$redis->lpush("list", "php");//获取列表中所有的值$list = $redis->lrange("list", 0, -1);print_r($list);echo "<br>"; //从右侧加入一个$redis->rpush("list", "mysql");$list = $redis->lrange("list", 0, -1);print_r($list);echo "<br>";//从左侧弹出一个$redis->lpop("list");$list = $redis->lrange("list", 0, -1);print_r($list);echo "<br>";//从右侧弹出一个$redis->rpop("list");$list = $redis->lrange("list", 0, -1);print_r($list);echo "<br>";// 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 )

<?php  //实例化redis  $redis = new Redis();  //连接  $redis->connect("127.0.0.1", 6379);  //列表  //存储数据到列表中  $redis->lpush("list", "html");  $redis->lpush("list", "css");  $redis->lpush("list", "php");  $redis->lpush("list", "mysql");  $redis->lpush("list", "javascript");  $redis->lpush("list", "ajax");  //获取列表中所有的值  $list = $redis->lrange("list", 0, -1);  print_r($list);echo "<br>";   //获取列表的长度  $length = $redis->lsize("list");  echo $length;echo "<br>";  //返回列表key中index位置的值  echo $redis->lget("list", 2);echo "<br>";  echo $redis->lindex("list", 2);echo "<br>";  //设置列表中index位置的值  echo $redis->lset("list", 2, "linux");echo "<br>";  $list = $redis->lrange("list", 0, -1);  print_r($list);echo "<br>";  //返回key中从start到end位置间的元素  $list = $redis->lrange("list", 0, 2);  print_r($list);echo "<br>";  $list = $redis->lgetrange("list", 0, 2);  print_r($list);echo "<br>";  //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 = $redis->ltrim("list", 0, 1);  print_r($list);echo "<br>";  $list = $redis->lrange("list", 0, -1);  print_r($list);echo "<br>";  // 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 )

<?php  //实例化redis  $redis = new Redis();  //连接  $redis->connect("127.0.0.1", 6379);  //列表  //存储数据到列表中  $redis->lpush("list", "html");  $redis->lpush("list", "html");  $redis->lpush("list", "html");  $redis->lpush("list", "css");  $redis->lpush("list", "php");  $redis->lpush("list", "mysql");  $redis->lpush("list", "javascript");  $redis->lpush("list", "html");  $redis->lpush("list", "html");  $redis->lpush("list", "html");  $redis->lpush("list", "ajax");  //获取列表中所有的值  $list = $redis->lrange("list", 0, -1);  print_r($list);echo "<br>";   //删除列表中count个值为value的元素  //从左向右删  $redis->lrem("list", "html", 2);  $list = $redis->lrange("list", 0, -1);  print_r($list);echo "<br>";   //从右向左删  $redis->lrem("list", "html", -2);  $list = $redis->lrange("list", 0, -1);  print_r($list);echo "<br>";   //删除所有  $redis->lrem("list", "html", 0);  $list = $redis->lrange("list", 0, -1);  print_r($list);echo "<br>";  // 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):

<?php  //实例化redis  $redis = new Redis();  //连接  $redis->connect("127.0.0.1", 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("hash", "cat", "cat");echo "<br>";  echo $redis->hset("hash", "cat", "cat");echo "<br>";  echo $redis->hset("hash", "cat", "cat1");echo "<br>";  echo $redis->hset("hash", "dog", "dog");echo "<br>";  echo $redis->hset("hash", "bird", "bird");echo "<br>";  echo $redis->hset("hash", "monkey", "monkey");echo "<br>";  //获取hash中某个key的值  echo $redis->hget("hash", "cat");echo "<br>";  //获取hash中所有的keys  $arr = $redis->hkeys("hash");  print_r($arr);echo "<br>";  //获取hash中所有的值 顺序是随机的  $arr = $redis->hvals("hash");  print_r($arr);echo "<br>";  //获取一个hash中所有的key和value 顺序是随机的  $arr = $redis->hgetall("hash");  print_r($arr);echo "<br>";  //获取hash中key的数量  echo $redis->hlen("hash");echo "<br>";  //删除hash中一个key 如果表不存在或key不存在则返回false  echo $redis->hdel("hash", "dog");echo "<br>";  var_dump($redis->hdel("hash", "rabbit"));echo "<br>";  // 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)

<?php  //实例化redis  $redis = new Redis();  //连接  $redis->connect("127.0.0.1", 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("hash", $arr);  print_r($redis->hgetall("hash"));echo "<br>";  // 批量获得额多个key的值  $arr = [1, 2, 3, 5];  $hash = $redis->hmget("hash", $arr);  print_r($hash);echo "<br>";  //检测hash中某个key知否存在  echo $redis->hexists("hash", "1");echo "<br>";  var_dump($redis->hexists("hash", "cat"));echo "<br>";  print_r($redis->hgetall("hash"));echo "<br>";  //给hash表中key增加一个整数值  $redis->hincrby("hash", "1", 1);  print_r($redis->hgetall("hash"));echo "<br>";  //给hash中的某个key增加一个浮点值  $redis->hincrbyfloat("hash", 2, 1.3);  print_r($redis->hgetall("hash"));echo "<br>";  //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):

<?php  //实例化redis  $redis = new Redis();  //连接  $redis->connect("127.0.0.1", 6379);  //集合  // 添加一个元素  echo $redis->sadd("set", "cat");echo "<br>";  echo $redis->sadd("set", "cat");echo "<br>";  echo $redis->sadd("set", "dog");echo "<br>";  echo $redis->sadd("set", "rabbit");echo "<br>";  echo $redis->sadd("set", "bear");echo "<br>";  echo $redis->sadd("set", "horse");echo "<br>";  // 查看集合中所有的元素  $set = $redis->smembers("set");  print_r($set);echo "<br>";  //删除集合中的value  echo $redis->srem("set", "cat");echo "<br>";  var_dump($redis->srem("set", "bird"));echo "<br>";  $set = $redis->smembers("set");  print_r($set);echo "<br>";  //判断元素是否是set的成员  var_dump($redis->sismember("set", "dog"));echo "<br>";  var_dump($redis->sismember("set", "bird"));echo "<br>";  //查看集合中成员的数量  echo $redis->scard("set");echo "<br>";  //移除并返回集合中的一个随机元素(返回被移除的元素)  echo $redis->spop("set");echo "<br>";  print_r($redis->smembers("set"));echo "<br>";  // 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 )

<?php  //实例化redis  $redis = new Redis();  //连接  $redis->connect("127.0.0.1", 6379);  //集合  $redis->sadd("set", "horse");  $redis->sadd("set", "cat");  $redis->sadd("set", "dog");  $redis->sadd("set", "bird");  $redis->sadd("set2", "fish");  $redis->sadd("set2", "dog");  $redis->sadd("set2", "bird");  print_r($redis->smembers("set"));echo "<br>";  print_r($redis->smembers("set2"));echo "<br>";  //返回集合的交集  print_r($redis->sinter("set", "set2"));echo "<br>";  //执行交集操作 并结果放到一个集合中  $redis->sinterstore("output", "set", "set2");  print_r($redis->smembers("output"));echo "<br>";  //返回集合的并集  print_r($redis->sunion("set", "set2"));echo "<br>";  //执行并集操作 并结果放到一个集合中  $redis->sunionstore("output", "set", "set2");  print_r($redis->smembers("output"));echo "<br>";  //返回集合的差集  print_r($redis->sdiff("set", "set2"));echo "<br>";  //执行差集操作 并结果放到一个集合中  $redis->sdiffstore("output", "set", "set2");  print_r($redis->smembers("output"));echo "<br>";  // 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):

<?php  //实例化redis  $redis = new Redis();  //连接  $redis->connect("127.0.0.1", 6379);  //有序集合  //添加元素  echo $redis->zadd("set", 1, "cat");echo "<br>";  echo $redis->zadd("set", 2, "dog");echo "<br>";  echo $redis->zadd("set", 3, "fish");echo "<br>";  echo $redis->zadd("set", 4, "dog");echo "<br>";  echo $redis->zadd("set", 4, "bird");echo "<br>";  //返回集合中的所有元素  print_r($redis->zrange("set", 0, -1));echo "<br>";  print_r($redis->zrange("set", 0, -1, true));echo "<br>";  //返回元素的score值  echo $redis->zscore("set", "dog");echo "<br>";  //返回存储的个数  echo $redis->zcard("set");echo "<br>";  //删除指定成员  $redis->zrem("set", "cat");  print_r($redis->zrange("set", 0, -1));echo "<br>";  //返回集合中介于min和max之间的值的个数  print_r($redis->zcount("set", 3, 5));echo "<br>";  //返回有序集合中score介于min和max之间的值  print_r($redis->zrangebyscore("set", 3, 5));echo "<br>";  print_r($redis->zrangebyscore("set", 3, 5, ["withscores"=>true]));echo "<br>";  //返回集合中指定区间内所有的值  print_r($redis->zrevrange("set", 1, 2));echo "<br>";  print_r($redis->zrevrange("set", 1, 2, true));echo "<br>";  //有序集合中指定值的socre增加  echo $redis->zscore("set", "dog");echo "<br>";  $redis->zincrby("set", 2, "dog");  echo $redis->zscore("set", "dog");echo "<br>";  //移除score值介于min和max之间的元素  print_r($redis->zrange("set", 0, -1, true));echo "<br>";  print_r($redis->zremrangebyscore("set", 3, 4));echo "<br>";  print_r($redis->zrange("set", 0, -1, true));echo "<br>";  //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 )

更多关于PHP相关内容感兴趣的读者可查看本站专题：《php+redis数据库程序设计技巧总结》、《php面向对象程序设计入门教程》、《PHP基本语法入门教程》、《PHP数组(Array)操作技巧大全》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》

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