Current Perl documentation can be found at perldoc.perl.org.
Here is our local, out-dated (pre-5.6) version:
In the context of an
HTML form, you can use what's known as
multipart/form-data encoding. The CGI.pm module (available from
CPAN) supports this in the
start_multipart_form()
method, which isn't the same as the
startform()
method.