先搭建好redis集群，我的搭建好了，给你们看下

我的是3主3从。

接下来我们用predis来测试集群。predis是php生态里面的一个composer包

<?php

require __DIR__.'/vendor/predis/predis/autoload.php';//引入predis相关包
//redis实例
$servers = array(
    'tcp://192.168.139.138:7000',
    'tcp://192.168.139.138:7001',
    'tcp://192.168.139.138:7002',
    'tcp://192.168.139.138:7003',
    'tcp://192.168.139.138:7004',
    'tcp://192.168.139.138:7005',

);

$options = ['cluster' =>'redis','parameters' => [
    'password' => '123456'
]];

$client = new Predis\Client($servers, $options);

$client->set('w4',100);

测试完成。