Redis series-php how to use redis through redis extension

1、安装php扩展

a）安装php扩展phpredis：

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[root@xsf002 tool]# git clone https://github.com/nicolasff/phpredis.git phpredis

[root@xsf002 tool]# cd phpredis/

[root@xsf002 phpredis]# /usr/local/php/bin/phpize #假设 php目录：/usr/local/php

[root@xsf002 phpredis]# ./configure --with-php-config=/usr/local/php/bin/php-config

[root@xsf002 phpredis]# make

[root@xsf002 phpredis]# make install

[root@xsf002 tool]# git clone https://github.com/nicolasff/phpredis.git phpredis

[root@xsf002 tool]# cd phpredis/

[root@xsf002 phpredis]# /usr/local/php/bin/phpize #假设 php目录：/usr/local/php

[root@xsf002 phpredis]# ./configure --with-php-config=/usr/local/php/bin/php-config

[root@xsf002 phpredis]# make

[root@xsf002 phpredis]# make install 如果顺利，将得到类似如下提示：

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Installing shared extensions: /usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/

Installing shared extensions: /usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/ php扩展文件目录下，将有个redis.so文件。

b）加载redis.so

在php.ini 文件中，添加配置：

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[redis]

extension=redis.so

[redis]

extension=redis.so重启web服务器，echo phpinfo() ，将看到大致如下显示：

2、通过扩展访问redis服务器

php如何使用redis服务器存取数据？无非是经过phpredis扩展模块，通过如下几个步骤：

1、实例化redis类【new redis()】

2、调用redis类方法，连接redis服务器【connect，pconnect】

3、设置连接选项【setOption】

4、存/取数据

5、关闭连接【close】

如果使用默认选项，步骤3不需要。请参看下面的代码示例：

[php]

$redis = new Redis(); #实例化redis类

$redis->connect('127.0.0.1'); #连接服务器

$redis->set('key', 'hello '); #调用方法，设置string类型值

$redis->append('key', 'world'); #修改string类型值

echo $redis->get('key'); #获取redis key的值，并输出显示

echo $redis->type('key'); #获取key 的数据类型

echo $redis->echo('will close...');# 输出字符串

$redis->close(); #关闭连接

$redis = new Redis(); #实例化redis类

$redis->connect('127.0.0.1'); #连接服务器

$redis->set('key', 'hello '); #调用方法，设置string类型值

$redis->append('key', 'world'); #修改string类型值

echo $redis->get('key'); #获取redis key的值，并输出显示

echo $redis->type('key'); #获取key 的数据类型

echo $redis->echo('will close...');# 输出字符串

$redis->close(); #关闭连接通过上面的代码，我们基本完成一个简单redis的存取操作。下面罗列一些Redis类的一些属性及方法

a）连接redis server：

connect ：连接server

pconnect ：长连接

auth ：权限验证

select ：选择DB

close ：关闭连接

setOption : 设置 client 选项

getOption ：获取client选项

ping ： ping redis server

echo ：输出字符串

Note that if you operate redis frequently, continuous connect and close will consume a lot of performance. At this time, it is recommended to use pconnect to establish a long connection

b) String reading and writing functions

append: Append the value after the value

decr: Decrement the value of a key

incr: increment the value of a key

get: Get a value

set: Set a value

getSet: Set the value and return the old value

mGet: Get values in batches

mSet: Set values in batches

strlen: Get the value length

Note: If you can use batch operations, try to use batch operations to reduce the performance of frequent connections to the redis database

c) hash reading and writing function

hDel: Delete multiple domains

hExists: Determine whether a hash domain exists

hGet: Get the value of hash field

hGetAll: Get all domain values

hIncrBy: auto-increment the value of a hash int field

hKeys: Get hash of all domains

hLen: Get the number of domains

hMGet: Get domain values in batches

hMSet: Set domain values in batches

hSet: Set the value of the field

hVals: Get the values of all fields

d) list reading and writing functions

lInsert: Insert element

lLen: list length

lPop: Remove and get the first color

lPush: Insert an element

lRem: remove element

lSet: Set element value

e)set

sAdd: Add one or more members

sIsMember: Whether to contain

sMembers: Get members

sMove: Move members

sPop: Remove members

sRandMember: Get a random member

sRem: Delete

f）sorted set

zAdd: Add one or more

zCard: Number of members

zIncrBy: Increment member score

zRange: Returns members within the index range

zRangeByScore: Returns members within the score range

zScore: Get member score

zRem: Remove one or more members

Related labels：

php phpredis r redis use Install how Expand series pass

source：php.cn

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