Add new items

 public function officeNote(Request $request,$orderId)
    {
        // Validate the incoming request
        $request->validate([
            'office_note' => 'required|string|max:255', // Adjust validation rules as needed
        ]);


        // Retrieve the order
        $order = Order::findOrFail($orderId);
        $object_data = $order->office_note ? json_decode($order->office_note) : [];

        if (!is_array($object_data)) {
            $object_data = [];
        }
        
        // Create a new note object
        $obj = new \stdClass;
        $obj->note = $request->input('office_note');
        $obj->user = auth()->user()->name;
        $obj->date = Carbon::now()->format('l, F, j Y g:i A');
        
        // Append the new note object to the existing data
        $object_data[] = $obj;
        
        // Update and save the order
        $order->office_note = json_encode($object_data);
        $order->save();

        return redirect()->back()->with('success', 'Office note updated successfully.');

    }

Remove items by array key

    public function officenote_remove($orderId, $key){
        $order = Order::findOrFail($orderId);
        $object_data = $order->office_note ? json_decode($order->office_note) : [];

        if (isset($object_data[$key])) {
            unset($object_data[$key]);
        }

         // Re-index the array to avoid gaps in numeric indices
        $object_data = array_values($object_data);

        // Encode the updated array back to JSON
        $order->office_note = json_encode($object_data);
        $order->save();
        return  redirect()->back()->with('success', 'Office note removed successfully.');

    }
		```