1,330   CodeIgniter PHP RedHat Redis

CI3提供了使用Redis的配置,不过需要通过PHP的Redis扩展phpredis来使用链接Redis

官网这样说:

Redis is an in-memory key-value store which can operate in LRU cache mode. To use it, you need Redis server and phpredis PHP extension.

phpredis是用C语言编写的PHP扩展,效率比较高。

 

既然是PHP扩展,那就得先安装了,之前有写过安装扩展的办法,PHP安装pdo_mysql扩展PHP安装mysqli扩展

这里说下安装过程

1,下载phpredis源码,解压放到PHP源码的扩展目录/home/php-5.6.8/ext

2,进入phpredis的解压目录编译安装

# /usr/local/php/bin/phpize
# ./configure --with-php-config=/usr/local/php/bin/php-config 
# make & make install

3,修改php.ini,添加redis.so,并重启php-fpm和nginx

4,打开phpinfo,可以看到redis扩展了

QQ图片20160226171712

 

下面介绍CodeIgniter3中配置Redis

1,在application/config添加配置文件redis.php,内容如下:

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

$config['socket_type'] = 'tcp'; //`tcp` or `unix`
$config['socket'] = '/var/run/redis.sock'; // in case of `unix` socket type
$config['host'] = '127.0.0.1';
$config['password'] = NULL;
$config['port'] = 6379;
$config['timeout'] = 0;

2,在控制器中使用Redis

        public function set()
        {
                $username = $this->input->post('username',TRUE);
                $this->load->driver('cache');
                // 数据保存到Redis
                $this->cache->redis->save('username', $username, 300);
        
        }

        public function get()
        {
                $this->load->driver('cache');
                // 获取Redis数据
                $username = $this->cache->redis->get('username');
                $data = array('username' => $username);

        }



更多用法,请查看官网:https://www.codeigniter.com/userguide3/libraries/caching.html#redis-caching




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