How can I ask a clarification of a part of a old question that I don't understand?
I was reading this question
but, in the middle of explanation there is a piece of code that I don't understand the reason
require '/badges/' . $file; $badge = new $class;
I think that I could add a comment, but then it's probable that nobody see my comment (as the question is old), and I'm not sure that is good idea create a new related question.