Neither of these are true. HTTP client-to-server information comes in a few limited forms:

• The requested URL
• The query string (the part after the question mark)
• The HTTP headers (many of which have pre-defined meanings)
• On a POST request, the content of the form (key/value pairs, usually)
• On a POST request, the content of any uploaded files

So, if you want information to go from a browser to a server, you'll have to figure out how to get it into one of these.

-- Randal L. Schwartz, Perl hacker
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