Please see How do I ask and answer homework questions? and Open Letter to students with homework problems. — Mushroomator 6 secs ago

Looks like a homework question. Did you try to find basic information regarding your assignment and did try to approach it yourself? There's a lot of information about recursion on the internet, nothing should stop you from making an attempt if you want to lean. Please see softwareengineering.meta.stackexchange.com/questions/6166/… — Alexander Ivanchenko 19 secs ago

Yes, that seems the way to go. Since Result seems to be the container, or "parent", it can hold some sort of dictionary that all the "children" can have access to. Also this question might get a better reception at software engineering — quamrana 8 secs ago

Welcome to Stack Overflow. Please take the tour to learn how Stack Overflow works and read How to Ask on how to improve the quality of your question. Then check the help center to see which questions are on-topic on this site. Please see: Why is “Is it possible to…” a poorly worded question?. Please show your attempts you have tried and the problems/error messages you get from your attempts. — Progman 47 secs ago

How to ask homework question and Open letter to students with homework problems — Barmar 24 secs ago

@MaxMuster Please see: Why is “Is it possible to…” a poorly worded question?. Why is it relevant for the function that it knows if it is called from inside an echo statement? Is it an option to add a parameter for the function? What are you trying to do? — Progman 6 secs ago