I have some custom PHP code I want to use for:
- putting an AdSense ad in the middle of the text in single articles
- taking off ads that shall not have ads
How easy would it be to use this in Yosemite theme? Can I edit the PHP/HTML easily and insert calls to the custom functions (they are in functions.php)? Or would I need to convert it to WordPress short codes? I also worry this will make theme updates more difficult.