If you want to make a MOD and you just don’t know where to start, I think the best thing to do is to look at existing MODs to see how other MOD authors go about doing certain tasks. If looking at an existing .php file makes absolutely no sense, type a keyword of what you don’t understand into the search box on http://www.php.net – in many cases it will be a PHP function that will be well explained and documented.
For this blog post, I will address the four basics of PHP. Understanding these concepts will give you a kick start into the world of PHP and MODding.