php cookie serialize json

//cookie 生成 serialize序列化
$arr_str = serialize(array('interval'=>$interval['id'],'amount'=>$data['amount'],'add_time'=>time()));
setcookie('winning',$arr_str, time()+3600*24);  //记录中奖信息
$data=unserialize($_COOKIE['winning']);
setcookie("winning","",time()-1);  //清除cookie

//json_encode  
$arr = array
       (
          'Name'=>'Peter',
          'Age'=>20
       );

$jsonencode = json_encode($arr);
echo $jsonencode;

//json_decode
$var = '{"Name":"Peter","Age":20}';
$jsondecode = json_decode($var);
print_r($jsondecode);