SitePoint.com has been posting a series of excerpts from a book they've recently release a revised edition of - "Build Your Own Database Driven Web Site Using PHP & MySQL". Here's the list so far:

• The Introduction
• Installation
• Introducing MySQL
• Introducing PHP
• Publishing MySQL Data on the Web

There's lots more to come, so keep an eye on SitePoint's PHP & MySQL Tutorials section for more as their published.