Need to add some custom php (setting cache headers) what is the best way?
I need to set custom php headers to control caching, the quick & dirty way is to edit the main index.php. But that's probably not the proper way to do it
What is the easiest way, to add a little code snippet, without touching the core files? Do I need to create an Addon, or are there easier ways? I've used search, but couldn't find it (although I can hardly imagine that this hasn't been asked before, so perhaps I use the wrong keywords ...)