How to use Word formulas in code (mix test questions)?

Question

PHP

There is a math test. And I wrote a script to mix the questions and answers of the test. You insert the test into the field and press the button, you get a random one. And then there are things that you can only insert text there. How do I insert formulas?
Is it possible to somehow convert them into one format, after processing them, deconvert and insert them into the Word?