Differences between current version and predecessor to the previous major change of CGI.
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| Newer page: | version 4 | Last edited on Sunday, October 31, 2004 7:26:32 am | by AristotlePagaltzis | |
| Older page: | version 3 | Last edited on Friday, April 2, 2004 11:24:16 am | by AristotlePagaltzis | Revert |
@@ -1,3 +1,9 @@
[Acronym] for the __C__ommon __G__ateway __I__nterface
-The [CGI]
standard specifies
the conditions for programs
run by a web server in respons
to certain queries in order
to return a webpage
. It
specifies things like [
EnvironmentVariable]
s such as
PATH_INFO, QUERY_STRING, REMOTE_USER, and many
more which you can read to find out information about the request. It also specifies
where a
[CGI] programs STDIN etc should
be connected
and a few other details of operation
.
+A
standard that defines
the conditions a [CGI] program should be able to expect.
+
+A [CGI] program is
run by a WebServer
to process
certain requests. It is expected
to return output to be sent back as the server's response to that request. That output will often be
a WebPage, but might also be anything else the server can send, like an image or a binary file
.
+
+The standard
specifies EnvironmentVariable~
s that provide information about the request, like <tt>
PATH_INFO</tt>
, <tt>
QUERY_STRING</tt>
, <tt>
REMOTE_USER</tt>
, and more, as well as details such as
where STDIN/OUT/ERR should be connected.
+
+Note that this means that
[CGI] programs can
be written in any ProgrammingLanguage, even if "[CGI]" is commonly --
and wrongly -- associated with [Perl]
.
