How to import/include a CSS file using PHP code and not HTML code?

Question

I have googled a lot but it seems that I am doing something wrong.

I want to do this:

Answer 1

The best way to do it is:

Step 1: Rename your main.css to main.php

Step 2: in your main.php add

Step 3: include it as usual

That is how i did it, and it works smoothly..