php - How to update the multiselected checkbox values in laravel

multiselected checkbox

I want to update the values in database. Please help me. The value is coming from the view like array in controller

        $user=CmsUser::find($id);

        $data=$req->all();

    if(count($req->input("involved"))!= 0){
           $values=$req->input('involved');

           foreach ($values as $value){
             $subscriberNewsletter= CmsSubscriberInvolve::where('subscriber_id',$id)
             ->update(["value"=>$value] );
           }
        }
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