I come across a situation in Laravel while calling a store() or update() method with Request parameter to add some additional value to the request before calling Eloquent fu
Usually, you do not want to add anything to a Request object, it's better to use collection and put() helper:
function store(Request $request)
{
// some additional logic or checking
User::create(array_merge($request->all(), ['index' => 'value']));
}
Or you could union arrays:
User::create($request->all() + ['index' => 'value']);
But, if you really want to add something to a Request object, do this:
$request->request->add(['variable' => 'value']); //add request