php paginate,php – 在laravel paginate中添加一些数据

正如tittle所说,这是我的控制器

$book = Data::where('userId','1')->paginate(3);

return response()->json($book);

并获取这样的json数据：

data:[{id: 1, userId: 1, vendorId: 1, name: "Alfreda Berge PhD", phone: "1-850-813-5950 x96169",…},…]

from:1

last_page:2

next_page_url: "http:/localhost/XX/public/user/book/list/1?page=2"

perpage:4

prev_page_url:null

to:4

total:5

// if I want to add a new column and value here ,what should I do?

我试着这样做：

$book = Data::where('userId','1')->paginate(3);

$book->printWord = 'Hellow!';

return response()->json($book);

但是,它似乎将删除列printWord.

任何的想法？