IBM developerWorks: Create an interactive production wiki using PHP - Part 2

"This "Create an interactive production wiki using PHP" series creates a wiki from scratch using PHP, with value-added features useful for tracking production. Wikis are widely used as tools to help speed development, increase productivity, and educate others. Each part of the series develops integral parts of the wiki until it is complete and ready for primetime, with features including file uploading, a calendaring "milestone" system, and an open blog. The wiki will also contain projects whose permissions are customizable to certain users."

Part 2 - Developing the basic wiki code