Statistics plugin

Hi,

I’ve created a PHP-file to be able to log visitor-information into a database. Another file, the front-end, shows the statistics. For an example, please visit this site (front-end).

To collect the user-information, a couple of php-lines have to be executed for every page-visit. I’ve edited one of my template files and added the PHP-code.

But I think it’s nicer to deal with the code by using a plugin. So I want to write a plugin by myself. The only thing the plugin has to do is the following:

– For every visit: run a couple of lines of PHP-code.

How to create such a plugin?