CGI
An acronym for Common Gateway Interface, CGI is an interface program that enables an Internet server to run external programs
to perform a specific function. Also referred to as gateways or CGI "scripts,"
these programs generally consist of a set of instructions written in a
programming
language like C or PERL that process requests from a browser, execute a program
and
format the results in HTML so they can be displayed in the browser. Gateway
scripts
are commonly used to add interactivity to a web page by allowing users to do
things
like fill out and submit forms for processing (as in an order form for an online
catalog); query databases by submitting search requests; and register or gain
access
to password-protected areas of a site. CGI scripts are also used to implement
a variety of tracking and measurement systems on a website.
See
Forms.
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