Eloquent question

Dear All,

I would like tranform tist SQL table to a 2 level Array. How I could be done with a nice one liner, or other solutionwould be interesting also

select client_id, category_id, service, price, regio_name from service_prices

I would like have a Array like this:

Categories['category_id']['client_id']=Array of full SQL row

#	client_id	category_id	service	price	regio_name
1	2	106	Csík	1987	Baranya
2	37	106	Csík	6372	Somogy
3	43	106	Csík	3958	Szabolcs-Szatmár-Bereg

First level is OK, but the second level with client_id : Is it possible do with one liner or I should go through the elements of the array in a loop

Thanks gergely

$prices = ServicePrice::where('price', '>', 0)
            ->select('client_id', 'category_id', 'service', 'price', 'regio_name')
            ->where('category_id','=','106')
            ->get()
            ->mapToGroups(function ($price, $k) {
                return [$price->category_id =>$price];
            });

        dump($prices->toArray());

        dd($prices[106]->mapWithKeys(function($i,$k) {
           return [$i->client_id=>$i];
        })->toArray());

array:1 [▼
  106 => array:3 [▼
    0 => array:5 [▼
      "client_id" => "2"
      "category_id" => "106"
      "service" => "Csík"
      "price" => "1987"
      "regio_name" => "Baranya"
    ]
    1 => array:5 [▶]
    2 => array:5 [▶]
  ]
]
array:3 [▼
  2 => array:5 [▼
    "client_id" => "2"
    "category_id" => "106"
    "service" => "Csík"
    "price" => "1987"
    "regio_name" => "Baranya"
  ]
  37 => array:5 [▶]
  43 => array:5 [▶]
]