convert json array to json object in laravel 5.7 - laravel

Question

I am getting data from database using join query in laravel & pass to json and getting some result in array but I want object that I given below
Controller code:
$resultPastActivity= DB::table('table_user_create_activity')
->join('table_sub_category','table_user_create_activity.selected_activity_id', '=', 'table_sub_category.sub_category_id')
->select('sub_category_name','area','activity_type','activity_date','start_time','end_time')
->whereDate('activity_date', '<', $todayDate)
->where('user_id',$user_id)
->get();
return response()->json(['success' => '1','data' =>$resultPastActivity]);
The above code will give following json that is in array actually i want json in object
{
"success": "1",
"data": [
{
"sub_category_name": "Badminton",
"area": "Rankala lake",
"activity_type": "1",
"activity_date": "2018-01-12",
"start_time": "15:04:49",
"end_time": "20:05:69"
},
{
"sub_category_name": "Football",
"area": "Devakar panad",
"activity_type": "1",
"activity_date": "2018-01-15",
"start_time": "15:04:49",
"end_time": "20:05:69"
},
]
}
i want json as follows
{
"success": "1",
"data": {
{
"sub_category_name": "Badminton",
"area": "Rankala lake",
"activity_type": "1",
"activity_date": "2018-01-12",
"start_time": "15:04:49",
"end_time": "20:05:69"
},
{
"sub_category_name": "Football",
"area": "Devakar panad",
"activity_type": "1",
"activity_date": "2018-01-15",
"start_time": "15:04:49",
"end_time": "20:05:69"
},
}
}

Answer 1

try this, json_encode($json, JSON_FORCE_OBJECT) JSON_FORCE_OBJECT
$result=array();
$result["0"]=$resultPastActivity;
$json=json_encode((object)$result,JSON_FORCE_OBJECT);
return response()->json(['success' => '1','data' =>$json]);

Answer 2

The one you want is not a valid JSON, you can check it here: https://jsonformatter.curiousconcept.com/
So, you cannot create such an output, and, if you force it, the application that will receive it won't parse it correctly, so it doesn't make sense.