You should not start to learn CGI, from the docs:

"CGI.pm is no longer considered good practice for developing web applications, including quick prototyping and small web scripts. There are far better, cleaner, quicker, easier, safer, more scalable, more extensible, more modern alternatives available at this point in time. These will be documented with CGI::Alternatives.

I suggest you look at Mojolicious/Mojolicious::Lite.

In reply to Re: login authentication by marto
in thread login authentication by window

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