How can use node.js AND php?

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http://serverfault.com – My main application will be in Node.js. However, I'd also like a phpBB forums and a MediaWiki wiki, preferably served on the same Amazon EC2 server. I am aware of DNode which seems to be a way for PHP and Node.js to communicate with each other. However, what I want to do is just handle certain directories to PHP - eg: / = PHP /chat/ = Node.js /forums/ = PHP /wiki/ = PHP (HowTos)