Redis series-php How to use Redis with Redis extensions

from:http://blog.csdn.net/love__coder/article/details/8691679

Through the previous several blog, we should have a general understanding of Redis, here again, how to connect the Redis server to read and write data?

1. Install PHP extensions

A) Install PHP extension Phpredis:

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1. [[email protected] tool]# git clone https://github.com/nicolasff/ phpredis.git phpredis  
2. [[email protected] tool]# cd phpredis/   
3. [[email protected] phpredis]# /usr/local/php/bin/phpize    #<span style= "text-indent: 20px" > Assumptions  php Directory: </span><span style= " text-indent: 20px ">/USR/LOCAL/PHP</SPAN>&NBSP;&NBSP;
4. [[email protected]  phpredis]# ./configure --with-php-config=/usr/local/php/bin/php-config  
5. [[EMAIL&NBSP;PROTECTED]&NBSP;PHPREDIS]#&NBSP;MAKE&NBSP;&NBSP;
6. [[email protected] phpredis]# make install  

[[email protected] tool]# git clone https://github.com/nicolasff/phpredis.git phpredis[[email protected] tool]# CD Phpredis/[[email protected] phpredis]#/usr/local/php/bin/phpize   #假设 php Directory:/usr/local/php[[email protected] phpredis]#./configure--with-php-config=/usr/local/php/bin/php-config[[email protected] phpredis]# Make[[email Protected] phpredis]# make install

If it goes well, you'll get a hint like this:

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1. 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 extension file directory, there will be a redis.so file.

b) Load redis.so

In the php.ini file, add the configuration:

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1. [Redis]
2. Extension=redis.so

[redis]extension=redis.so

Restart the Web server, Echo phpinfo (), and you will see a general display like this:

2. Access to Redis server by extension

How does PHP use Redis server to access data? It is only through the Phpredis extension module, through the following several steps:

1. Instantiate Redis class "New Redis ()"

2, Call Redis class method, connect Redis server "Connect,pconnect"

3. Set connection option "SetOption"

4. Save/Fetch data

5. Close the connection "close"

If you use the default option, step 3 is not required. See the following code example:

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2. <?php
4. $redis = new Redis (); #实例化redis类
6. $redis->connect (' 127.0.0.1 '); #连接服务器
8. $redis->set (' key ', ' hello '); #调用方法, set String type value
10. $redis->append (' key ', ' world '); #修改string类型值
12. echo $redis->get (' key '); #获取redis the value of key and outputs the display
14. echo $redis->type (' key '); #获取key data type
16. echo $redis-Echo (' would close ... '); # output string
18. $redis->close (); #关闭连接

<?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, set the string type value $redis->append (' Key ', ' world '); #修改string类型值echo $redis->get (' key ');  #获取redis the value of key, and the output shows echo $redis->type (' key '); #获取key data type echo $redis->echo (' would close ... '); # output string $redis->close (); #关闭连接

With the code above, we basically complete a simple Redis access operation. Some of the properties and methods of the Redis class are listed below

A) Connect to Redis server:

• Connect: Connecting to server
• Pconnect: Long Connection
• AUTH: Permission Validation
• Select: Choose DB
• Close: Closing the connection
• SetOption: Set client options
• GetOption: Get Client options
• ping:ping Redis Server
• Echo: Output string

Note that if you operate redis frequently, and the connect and close will be very expensive, it is recommended to use Pconnect to establish a long connection.

b) string read and write function

• Append: Append a value after a value
• DECR: decrements the value of a key
• INCR: Increments the value of a key
  
• Get: Get a value
• Set: Sets a value
• Getset: Sets the value and returns the old value
• MGet: Bulk Fetch values
• MSet: Batch Setting values
• Strlen: Get value length

Note: If you can use bulk operations as much as possible, reduce the frequent connection to Redis database performance

c) hash read and write function

• Hdel: Delete a multiple domain
• Hexists: Determine if a hash field exists
• Hget: Gets the value of the hash field
• Hgetall: Get all domain values
• Hincrby: Self-growing value of a hash int field
• Hkeys: Get hash all fields
• Hlen: Get the number of domains
• Hmget: Bulk Get the value of a domain
• Hmset: Bulk set values for a field
• Hset: Setting the value of a field
• Hvals: Get values for all domains

d) List read and write function

• Linsert: inserting elements
• Llen:list length
• Lpop: Remove and get the first color
• Lpush: Inserting an element
• Lrem: removing elements
• LSet: Setting element values

E) Set

• Sadd: Add one or more members
• Sismember: Whether it contains
• Smembers: Get member
• Smove: Moving Members
• SPop: removing members
• Srandmember: Get random Members
• Srem: Delete

f) Sorted set

• Zadd: Add one or more
• Zcard: Number of Members
• Zincrby: Incrementing member score
• Zrange: Returns a member within an index range
• Zrangebyscore: Returns members within the score range
• Zscore: Get member Score
• Zrem: Remove one or more members

For more information, please refer to: Https://github.com/nicolasff/phpredis

Http://redis.io/clients

Redis series-php How to use Redis with Redis extensions