如何防止 whereRaw 自动对我的收藏进行排序？

Question

I have a list of ids which are id of a collection after sorted, eg:

$orderedIds = "2,18,4,1,17,5,6,16,15,14,13,11,12,10,9,8,7,3"

and I want to pick them out with whereRaw like this:

$result = Collection::whereRaw("FIELD(id, ".$orderedIds." )");

but the result is automatically sorted by id, which means the collection output is literally the original collection:

[
 {
   "id": 1,
   ...
 }, {
   "id": 2,
   ...
 }, {
   "id": 3,
   ...
 }
]

Any option with whereRaw , or any other way around for me to achieve the sorted collection?

Answer 1

Try this

 Collection::whereIn('id',$orderedId)->orderByRaw(DB::raw("FIELD(id, $orderedId)"))->get();