libwww-perl is a library of Perl packages/modules which provides a simple and consistent programming interface to the World Wide Web. This library is being developed as a collaborative effort to assist the further development of useful WWW clients and tools.
The libwww-perl distribution is a collection of Perl modules which provides a simple and consistent programming interface (API) to the World-Wide Web. The main focus of the library is to provide classes and functions that allow you to write WWW clients, thus libwww-perl said to be a WWW client library. The library also contain modules that are of more general use.
The HFPM are a set of modules that accept a submitted HTML form, possibly modify the contents of the submitted fields, and output the result using e-mail, appending to a file, and/or displaying it to the user or returning an arbitrary URL. They also operate on the environmental variables passed in from the client and server.