1、php redis
2、解壓安裝并進入redis目錄
[raykaeso@web ~]$ tar xzf redis-2.2.5.tgz
[raykaeso@web ~]$ cd redis-2.2.5
3、在redis文件夾下，生成configure配置文件
[raykaeso@web redis-2.2.5]$ /usr/local/php/bin/phpize
Configuring for:
PHP Api Version: 20090626
Zend Module Api No: 20090626
Zend Extension Api No: 220090626
[raykaeso@web redis-2.2.5]$ ./configure –with-php-config=/usr/local/php/bin/php-config
[raykaeso@web redis-2.2.5]$ make
[raykaeso@web redis-2.2.5]$ make install
Installing shared extensions: /usr/local/php/lib/php/extensions/no-debug-non-zts-20090626/
cp: cannot create regular file `/usr/local/php/lib/php/extensions/no-debug-non-zts-20090626/#INST@6338#': Permission denied
make: *** [install-modules] Error 1
注意：一定要用root用戶。
[raykaeso@web redis-2.2.5]$ su
Password:
[root@web redis-2.2.5]# make install
4、在php配置文件php.ini里面加載redis擴展
extension=redis.so
5、查看phpinfo，redis擴展是否加載
redis
Redis Support enabled
Redis Version 2.2.5
至此，redis擴展已經安裝成功并加載，可以用php操作redis了。

用命令進行測試啊，下面是步驟：
Linux代碼
$ /usr/local/webserver/redis/bin/redis-server /etc/redis/redis.conf
$ /usr/local/webserver/redis/bin/redis-cli set foo bar
//輸出內容
OK

$ /usr/local/webserver/redis/bin/redis-cli get foo
//輸出內容
"bar"

命令行連接：
/usr/local/webserver/redis/bin/redis-cli -h 192.168.1.112 -p 6379