Differences between version 4 and revision by previous author of CGI.
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| Newer page: | version 4 | Last edited on Sunday, October 31, 2004 7:26:32 am | by AristotlePagaltzis | Revert |
| Older page: | version 1 | Last edited on Sunday, August 10, 2003 4:11:04 pm | by WikiAdmin | Revert |
@@ -1,3 +1,9 @@
[Acronym] for the __C__ommon __G__ateway __I__nterface
-a way of having a web server run a
program to return a webpage
. the
[CGI] specification
specifies things
like PATH_INFO, QUERY_STRING, REMOTE_USER as environmental variables
that you
can query ot find out information about the request
.
+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]
.
