This document describes the XML schema for the Sitemap protocol.
The Sitemap protocol format consists of XML tags. All data values in a Sitemap must be entity-escaped. The file itself must be UTF-8 encoded.
phpSitemapNG is a free Google Sitemaps generator written in PHP, but also generates RSS-based, txt-based and HTML-based sitemap files. It will spider your website and also your filesystem (of course, as you prefer). You can download and use it for free, the licence is GPL.
Adds ability to generate Google sitemap.