1、安装php
yum install php php-devel -y
2、安装php扩展支持memcache
yum -y install php-pecl-memcache
yum -y install php56w-pecl-memcache //如php端是5.6，我们不是5.6，不用装
3、安装redis
安装redis和php支持模块
rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm //下载源
yum clean all
yum install -y redis php-redis //让php支持redis
4、添加php支持redis模块 在结尾处进行添加
vim /etc/php.ini
extension=redis.so
systemctl restart httpd //重启httpd ，php也会随之起来
vim /etc/redis.conf //开启进程，才能启动
daemonize yes
systemctl restart redis
ps -ef | grep redis
5、测试：
测试一下客户端是否好用
redis-cli set hx value //存值
redis-cli get hx //取值
添加测试页面
cd /var/www/html/
vim test.php
<?php
phpinfo();
?>
vim session.php //统计网页的访问次数
<?php
session_start();
$count = isset($_SESSION['count']) ? $_SESSION['count'] : 1;
echo $count;
$_SESSION['count'] = ++$count;
?>
vim redis.php
<?php
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
$redis->set('key', 'value');
echo $redis->get('key')."\n";
$redis->setex('key', 3600, 'value'); // sets key → value, with 1h TTL.
$redis->set('key1', 'val1');
$redis->set('key2', 'val2');
$redis->set('key3', 'val3');
$redis->set('key4', 'val4');
$redis->delete('key1', 'key2');
echo $redis->get('key3')."\n" ;
$redis->delete(array('key3', 'key4'));
?>
新测试页面：
通过key获取value
<?php
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
$redis->set('jkl', '123');
echo $redis->get('jkl')."\n";
?>
6、登录：http://ip/test.php
7、登录：http://ip/redis.php
8、登录：http://ip/session.php
