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Web Developer Resource Index: CGI

The Common Gateway Interface is a specification, or protocol, in which an external program or script interacts with a Web server by accepting parameters from the server, and then returns results which are generally displayed in a Web browser (client). CGI scripts may be written in any programming language capable of following the specification. Perl is by far the most popular language for CGI programming.

Traditionally, and where the term "gateway" originates, CGI was designed to extract information from some other source, such as a database, that was not designed to be used in a hypertext environment like the Web. The most common use of the specification is to process the contents of an HTML form. See the FreeBSD Man Pages for an excellent example of both of these features.

Updated: Sunday, July 31st, 2005 @ 10:49 AM EST [54]

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Last updated: Sunday, July 31st, 2005 @ 10:49 AM EST [2005-07-31T15:49:52Z]   home

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