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Redis series-php how to use redis through redis extension_PHP tutorial
- WBOYOriginal
- 2016-07-14 10:09:38828browse
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
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