laravel pluck function doesn't give the result i want

Question

My mongodb collection;

    [
         {
             "_id" : ObjectId('623204a7278eb2d65165a604'),
             "name" : "One",
             "data" : {
                        "by" : ObjectId('623204d1e0b39813dec5f9ca')
             },
        },
        {
            "_id" : ObjectId('623205156949c5e3ab47a94e'),
            "name" : "Two",
            "data" : {
                        "by" : ObjectId('6232051cc76f3fcc90351784')
            }
        }
   ]

I using jenssegers/laravel-mongodb package. This is how I get data:

$array = MyCollection::where(...)
            ->get(['_id', 'data.by']);

I am doing the following operation on array:

$array->pluck('data.by');

This gives the output:

  [{"$oid": "623204d1e0b39813dec5f9ca"},{"$oid": "6232051cc76f3fcc90351784"}]

I want to data.by ids array: ['623204d1e0b39813dec5f9ca' , '6232051cc76f3fcc90351784'];

Answer 1

I'm not completely sure, but I think you can get your desired output with map()

These 3 lines should do the same thing.

$array->pluck('data.by')->map(function ($item) { return $item->{'$oid'}; });
$array->pluck('data.by')->map(fn ($item) => $item->{'$oid'});
$array->pluck('data.by')->map->{'$oid'};