TP5使用redis

<?php
namespace app\api\controller;
use app\api\controller\Common_base;
use think\cache\driver\Redis;


class a extends Common_base
{

    public function b(){
        extract($_REQUEST);
        if (!$a|| !$b) {
            die(json_encode(array('result' => 'fail', 'msg' => 'fail')));
        }
        $key= $a."-".$b;
        //redis参数
        $options= [
            'host'       => '127.0.0.1',
            'port'       => 6379,
            'password'   => 'xxxxx',
            'select'     => 0,
            'timeout'    => 0,
            'expire'     => 0,
            'persistent' => false,
            'prefix'     => '',
        ];
        $redis=new Redis($options);//实例化redis
        $handler = $redis->handler();//得到句柄
        $handler->hDel('tasks',$key);
        $handler->hDel('taskuptime',$key);
        $handler->del($key);
        die(json_encode(array('result' => 'success', 'msg' => 'success')));

    }
}