1；拷贝redis.conf配置文件

redis6379.conf
pidfile /var/run/redis6380.pid
port 6380

redis6380.conf
pidfile /var/run/redis6380.pid
port 6380

2；启动redis同时加载配置文件

redis-server redis6379.conf &
redis-server redis6380.conf &

3；php测试

<?php

    /**
     * redis测试
     */

    $redis = new Redis();
    $redis->connect('127.0.0.1', 6379);
    $redis->set('devil', 'hello world!');
    echo $redis->get('devil');

    echo '<br />---------------------<br />';

    $redis2 = new Redis();
    $redis2->connect('127.0.0.1', 6380);
    $redis2->set('devil', 'gongfuxiang');
    echo $redis2->get('devil');

    echo '<br />---------------------<br />';

    echo $redis->get('devil');

    // 输出
    hello world!
    ---------------------
    gongfuxiang
    ---------------------
    hello world!

?>