ThinkPHP的cookide保存二维数组的方法

$data[263] = array('gid'=>263,'num'=>1);
$data[266] = array('gid'=>266,'num'=>1);
$data[267] = array('gid'=>267,'num'=>5);

$data = serialize($data);  //序列化二维数组
cookie('studyfox_shopping_cart',$data);     //将数组以studyfox_shopping_cart名称保存在cookie中
dump(unserialize(cookie('studyfox_shopping_cart')));   //反序列化