differences in 'use CGI'????? - qw(:standard), CGI::Carp

[Oxymoron]

hey.
After changing a faulty script line from 'use CGI' to 'use CGI qwstandard)' which worked, I'd just like to know what differences these changes and other attributes which can be attached to the CGI module do?????
could anyone help me understand, or let me know where I can find out??

thankyou all!
JoE we are all of us living in the gutter.
But some of us are looking at the stars.

 

[justice41]

Calling CGI with the ':standard' param tells the module that you want to use the functional (non-OO) interface. This causes the module to export all the functions that you use like [tt]header, start_html, param,[/tt] etc., so that you can call them as functions rather than object methods. The CGI.pm docs explain the difference, also the website of the module's author is here:

http://stein.cshl.org/WWW/software/CGI/

The '::Carp' is not a modifier of CGI. CGI::Carp is a completely separate module (read about module naming here

http://world.std.com/~swmcd/steven/perl/module_mechanics.html#TOC4).

It attempts to duplicate the behavior of the Carp module in a CGI environment, i.e. warnings and fatal errors can be sent to the browser instead of stderr.

jaa