How to create a system for selling ads?

Question

PHP

Good afternoon! I would like to make a system for selling advertising for sites, something like AdSense or Direct. The fact is that we do not have such a company that would sell advertising in the Kazakh language. Advise where to start, what is the best way to write and how such systems work. I would be grateful for any information, even if it is a piece of code. Thank you. And the most important thing. Is it possible to display ad blocks in the html code itself so that it is not blocked by Adblock like

Answer 1

look in Google for "free banner management system", phpAds, it seems, was once, now xs what is the name
of the ad units you can display - see how Sape does, but this is fraught with a ban from Google, or just pessimism of those who dared to install

Answer 2

OpenX