Simetrical a écrit : <snip>
I still don't see the point in bothering with XML when PHP is easier all around, unless someone foresees someone using another language. But it really doesn't matter much. Whoever implements it gets to decide.
Maybe because an XML file can be used with any other language ? Having data in PHP files restrict its access to PHP. For example, you might want to write an XSL file to automaticly generate a website presenting the extensions. In my opinion, it is ten time easier to maintain and enhance than a PHP script.