XSLT (Extensible Stylesheet Language (XSL) Transformations) is a language for transforming XML documents into other XML documents. It is a standard defined by The World Wide Web consortium (W3C). Information about XSLT and related technologies can be found at http://www.w3.org/TR/xslt.
This extension uses Sabloton and expat, which can both be found at http://www.gingerall.com/. Binaries are provided as well as source.
On UNIX, run configure with the --with-sablot and --enable-sablot-errors-descriptive options. The Sablotron library should be installed somewhere your compiler can find it.
This PHP extension implements support Sablotron from Ginger Alliance in PHP. This toolkit lets you transform XML documents into other documents, including new XML documents, but also into HTML or other target formats. It basically provides a standardized and portable template mechanism, separating content and design of a website.