Okay, I've been working on this project (let's call it PEAR_MARC, although it's not an official PEAR project yet) in my spare moments over the past month or two. It's a new PHP package for working with MARC records. The package tries to follow the PEAR project standards (coding, documentation, error handlers, etc) in the hopes that, when I put a proposal forward, it will be accepted as a true PEAR package. For now, I'm most interested in getting feedback from coders for libraries on the usability of the API that I've designed -- is it easy enough to use and does it offer the functionality that you require for your day-to-day work?

He talks about the development of the package (from the php-marc package) and some of the differences between the two. Among them are:

• System requirements
• Functionality (different means to the same end)
• Error handling
• Tests (unit testing files included)