laravel 5 multiple upload and store their name into database

i am currently following this answer and here is my code

public function add(Request $request) {
files=[];
if($request->file('remind_letter')) $files[]=$request->file('file1');
if($request->file('answer_note')) $files[]=$request->file('file2');
if($request->file('negotiation')) $files[]=$request->file('file3');
foreach($files as $file){
if(!empty($file){
$filename=$file->getClientOriginalName();
$extension = $file->getClientOriginalExtension();
Storage::disk('local')->put($filename.'.'.$extension,
                                         File::get($filename));
$entry = new Docks();
$entry->div = $request->input('div');
$entry->year = $request->input('year');
$entry->activity = $request->input('activity');
$entry->corporate = $request->input('corporate');
--- need logic to save their path into databse ----
$entry->save

and i am still confuse how to save their path into database it is should be like this ?

$entry->remind_letter = $file->getFilename().'.'.$extension
$entry->answer_note= $file->getFilename().'.'.$extension
$entry->negotiation = $file->getFilename().'.'.$extension

via Chebli Mohamed