[RESOLVED] How can this be done?

[bubu]

I'm coding my CMS in PHP4, I will release it under GPL license as son as I think the core API is stable. Right now I change it allot in the search for a better architecture.

I need an OOP way to be able to load modules at runtime. For example:

class CMS {
     function load_module($module_file) {
          // loaded module can now be used by CMS class or 
          // by any previously loaded module
     }
} 

this way i can do:

$cms = new CMS;
$cms->load_module("config.php"); //  load first module, config
$cms->load_module("database.php"); // load second module, database, it has acces to cms->config module some how
$cms->load_module("templating.php"); // load third module, templating, which can use config and database modules
// etc... 

I've been reading about Drupal architecture here (make sure to read the comments also), but Drupal is what I call, function oriented lol. It's strictly procedural (still works very well).

What I really needed is a true OOP way to do it, something like the code example above. I know about aggregate() for PHP4 and runkit for PHP5 but they are experimental and runkit doesn't even bundles with PHP. So those are a no-go for a OOS CMS (Open Source Content Management System).

Any ideas?

Thanks in advance for your attention.