LNMP.org 一键安装包 安装 redis

LNMP 1.2缓存加速类扩展(xcache/Redis/memcached/eAccelerator)、imageMagick、ionCube安装教程

https://lnmp.org/faq/addons.html
cd ~
wget http://soft.vpser.net/lnmp/lnmp1.5.tar.gz -cO lnmp1.5.tar.gz && tar zxf lnmp1.5.tar.gz && cd lnmp1.5
./addons.sh install redis 

配置文件 

vim /usr/local/redis/etc/redis.conf

修改 

protected-mode no //protected-mode 参数是为了禁止外网访问 redis,酌情使用
daemonize yes 

运行

/usr/local/redis/bin/redis-server /usr/local/redis/etc/redis.conf

查看 redis 运行状态

systemctl status redis.service

卸载 

./addons.sh uninstall redis

PHP 编译安装 phpredis

cd ~/Downloads
git clone https://github.com/phpredis/phpredis.git
cd phpredis
/home/misswell/soft/php/bin/phpize
./configure --with-php-config=/home/misswell/soft/php/bin/php-config
make -j
make install

在 php.ini 里添加扩展

vim /home/misswell/soft/php/lib/php.ini

extension=redis

 

PHP Swoole 异步 redis 之 redis 服务安装

swoole 使用 异步redis的前置条件

  • redis 服务
  • hiredis库
  • 编译 swoole 需要加入 -enable-async-redis

安装 redis

下载 redis 地址: https://redis.io

cd ~/Downloads
tar -zxvf redis-4.0.9.tar.gz
cd redis-4.0.9
make

启动服务:

cd redis-4.0.9/src
./redis-server

hiredis 地址: https://github.com/redis/hiredis/releases

安装 hiredis

cd ~/Downloads
wget https://github.com/redis/hiredis/archive/v0.13.3.zip
unzip v0.13.3.zip
cd hiredis-0.13.3
make -j
sudo make install
sudo ldconfig

重新编译 hiredis

cd ~/Downloads/swoole/
./configure --with-php-config=/home/misswell/soft/php/bin/php-config --enable-async-redis
make clean
make -j
make install

...
Installing shared extensions: /home/misswell/soft/php/lib/php/extensions/no-debug-non-zts-20170718/
Installing header files: /home/misswell/soft/php/include/php/

php -m 命令查看 Swoole 是否开启成功
php --ri swoole 命令查看 Swoole 异步是否安装成功 async redis client =>enable

PHP 分布式中 Redis 实现 Session 共享

找到配置文件php.ini,修改为下面内容,保存并重启服务

session.save_handler = redis
session.save_path = "tcp://127.0.0.1:6379"

直接在代码中加入以下内容:

ini_set("session.save_handler", "redis");
ini_set("session.save_path", "tcp://127.0.0.1:6379");

测试:

<?php
//ini_set("session.save_handler", "redis");
//ini_set("session.save_path", "tcp://127.0.0.1:6379");

session_start();

//存入session
$_SESSION['class'] = array('name' => 'toefl', 'num' => 8);

//连接redis
$redis = new redis();
$redis->connect('127.0.0.1', 6379);

//检查session_id
echo 'session_id:' . session_id() . '<br/>';

//redis存入的session(redis用session_id作为key,以string的形式存储)
echo 'redis_session:' . $redis->get('PHPREDIS_SESSION:' . session_id()) . '<br/>';

//php获取session值
echo 'php_session:' . json_encode($_SESSION['class']);