I hope you like this first sight of the CouchDB database. Couch have many other features, but the documents and views are the central part of the system : once those are well understood, the rest is easily understandable. The most difficult part, as said in the introduction, is to forget years of SQL thinking to build web applications.
Definitely not the first CouchDB and PHP guide — see Quick guide to CouchDB and PHP, CouchDB basics for PHP developers, A not-so-quick guide to CouchDB with PHP — and most probably not the last and/or definitive one.
Original title and link for this post: CouchDB: Getting Started using PHP (published on the NoSQL blog: myNoSQL)