Laravel 6 允许在路由参数上传递“null”

Question

I'm using Laravel 5.5 and upgrading to Laravel 6.0.
There are numerous codes that goes like this in the project:

 route('some_route_name', optional($someobject)->id)

Laravel 5.5 can have null passed on that route above and not throwing an error. Now it returns this error below because most of the time the value is null

Missing required parameters for [Route: some_route_name] 

Now I have to replace all occurrences of the code above with:

 route('some_route_name', optional($someobject)->id ?: 0)

Is there any way to accept "null" as route parameters?
Or maybe this is bad practice in general?

Answer 1

Simply, in your route just put one question mark

route('some_route_name/{id?}','Controller@show');

Then in your controller

public function show($id = null)

Or if you bind with the Model, change your route to

route('some_route_name/{user?}','Controller@show');

And your controller will be like this

 public function show(User $user)