How to insert TV field in PHP code in MODX?

Question

MODX

Let me explain with an example.
Let's say there is some third-party solution in PHP. Well let, for example, some work with a DB. It does not matter. This script contains variables that are assigned some values ​​in the code itself. Is it possible to somehow make the interaction in such a way that the variable data is automatically substituted from the TV field?
What is the algorithm of actions here?

Answer 1

https://webdevkin.ru/posts/modx/kak-podklyuchit-mo... like this, if you need the other way around, then make a third-party script a snippet