Redis如何保存数组和对象

<?php
class MyRedis{
    private static $handler;

    private static function handler(){
        if(!self::$handler){
            self::$handler = new Redis();
            self::$handler -> connect(‘127.0.0.1‘,‘6379‘);
        }
        return self::$handler;
    }

    public static function get($key){
        $value = self::handler() -> get($key);
        $value_serl = @unserialize($value);
        if(is_object($value_serl)||is_array($value_serl)){
            return $value_serl;
        }
        return $value;
    }

    public static function set($key,$value){
        if(is_object($value)||is_array($value)){
            $value = serialize($value);
        }

        return self::handler() -> set($key,$value);
    }

}

<?php
require_once ‘MyRedis.php‘;

class MyObj{
    public function rTime(){
        return time();
    }
}

$arr = array(1,2,3);
$obj = new MyObj();
$str = ‘ My name is Jeffrey.‘;

MyRedis::set(‘arr‘,$arr);
MyRedis::set(‘obj‘,$obj);
MyRedis::set(‘str‘,$str);

$_arr = MyRedis::get(‘arr‘);
$_obj = MyRedis::get(‘obj‘);
$_str = MyRedis::get(‘str‘);

var_dump($_arr);
var_dump($_obj->rTime());
var_dump($_str);