VDaemon

An important aspect of creating Web Forms pages for user input is to be able to check that the information users enter is valid. VDaemon is a PHP library that grants an easy-to-use but powerful way to check for errors and, if necessary, display messages to the user. VDaemon feachures: - easily incorporate VDaemon validation into existing web sites - supports both client and server-side validation - all common types of validation (required fields, field type, range, compare, regexp, e-mail, custom) - allows you to completely customize how error information is displayed to the user