I read that as "let me mix them together like a PHP spaghetti app". The original poster may not have meant that, but after 13 years of writing PHP, the common complaint I still hear from newbies is "but structuring my code/using a framework has such a steep learning curve!". I'd rather like separation of concern enforced at the language level :)
And no, I don't have a clue how that'd work ;)