HTML Forms generation and validation

"A PHP class to dynamically generate and validate HTML forms.

HTML Forms generation and validation is a PHP class that generates HTML forms supporting keyboard navigation, server side and client side field validation with support for many built-in validation types, prevent security attacks by discarding spoofed values, multiple submit protection, sub-form validation, composition and generation of the HTML output with fields displayed as fully accessible or in read-only mode, generation of JavaScript field related functions, field value filtering based on regular expressions, and automatic capitalization of field text. The form output can be defined with templates using HTML with embedded PHP or the the Smarty template engine."(Manuel Lemos)