in reply to CGI form results to XML
use CGI "param";
my @birthdays = param("birthday");
CGI. It really is that easy. Donít roll your own. You have to be an expert in all the relevant RFCs as well as browser quirks to do it well and any expert wouldnít do it because itís already done.
Also, do *not* write your own XML. Itís similarly much more difficult to do right than is obvious. XML::LibXML or XML::Simple are typical choices and the latter can be easy if you know its limitations v your actual task.