How to update a field's value by 1 laravel

Question

I need to update a field value by one and I have done this:

UserTestOption::where('user_id', Auth::id())->update(['done' => 'done'+1]);

but it's not updating the field's value

Answer 1

You could use increment.

UserTestOption::where('user_id', Auth::id())
    ->increment('done');