Request parameter default value

Here we are checking if there is a per_page (or any other parameter) value then we will use it, otherwise, we will use a default one.

1// Isteand of this
2$perPage = request()->per_page ? request()->per_page : 20;
3 
4// You can do this
5$perPage = request('per_page', 20);

Tip given by @devThaer