Smarty Smarty is a template engine for PHP that has been incorporated to the core of XOOPS since version 2.0. This allows site administrators to design their sites with very minimal knowledge of PHP. Using basic HTML, Cascading Style Sheets and Smarty tags, site designers can customize themes and templates within minutes. Smarty tags allow website programmers to develop short scripts to use site and user data (e.g. site name, site slogan, site url, username, and user id) inside their HTML theme and template files. Smarty also implements a caching system that stores themes and templates for quick retrieval. This greatly speeds up the loading of any XOOPS site.