Increase laravel mysql field value?

Question

Laravel

DB::table('table')
    ->where('id', $id)
    ->update([
        'count' => \DB::raw('count + ?'),
        'updated_at' => now()
    ]);

If instead of ? set to 1, then everything works
. And I need to increase the field by $count.
What to write instead? ?
If so, then it doesn't work.
'count' => \DB::raw('count + ?', array($count)),

Answer 1

https://laravel.com/docs/5.8/queries#increment-and...
in general, everything that can be mixed together.