Generating and Validating Web Forms With PEAR HTML_QuickForm: „This article will introduce you to one of PEAR’s most powerful tools for generating Web forms and validating the input that arrives through them: the HTML_QuickForm package. This package provides a flexible, reusable library of methods that can literally save you hours of time when dealing with form-based user input – and best of all, it’s free and extremely easy to use.
(Via Zend Developer Zone.)