SERVER_SOFTWARE
The name and version of the server software
<!--#echo var="SERVER_SOFTWARE" -->
SERVER_NAME
The server's hostname, DNS alias, or IP address
<!--#echo var="SERVER_NAME" -->
GATEWAY_INTERFACE
The revision of the CGI specification to which this server complies
<!--#echo var="GATEWAY_INTERFACE" -->
SERVER_PROTOCOL
The name and revision of the information protocol this request
came in with, ie. HTTP/1.0
<!--#echo var="SERVER_PROTOCOL" -->
SERVER_PORT
The port on which the server is answering
<!--#echo var="SERVER_PORT" -->
REQUEST_METHOD
The method by which the document was requested. This is GET,
HEAD, POST for HTTP.
<!--#echo var="REQUEST_METHOD" -->
PATH_INFO
Scripts can be accessed by their virtual pathname, (relative
to the base directory), followed by extra information, as given
by the client, at the end of this path.
<!--#echo var="PATH_INFO" -->
PATH_TRANSLATED
The server translates the PATH_INFO from virtual-to-physical
location.
<!--#echo var="PATH_TRANSLATED" -->
SCRIPT_NAME
This is the virtual path to the script being executed.
<!--#echo var="SCRIPT_NAME" -->
QUERY_STRING
This is the text at the end of a URL that has a ? in it, e.g.
http://somedomain.com/directory/file.html?querystringtext
<!--#echo var="QUERY_STRING" -->
Great, but that's just a URL. How do I use it you ask. Here's a
little example, not much good for anything, but kinda cool if you've
never seen it before.
Add a link to color.html on one page, using the syntax below.
<a href="color.html?red">color</A>
Create color.html putting the following include into it. That's
right, the directive goes into the page being linked to rather
than the page being linked from.
<!--#set var="color" value="$QUERY_STRING" -->
<font size="+2" face="Arial,Helvetica" color=
"<!--#echo var="color" -->">
<!--#echo var="QUERY_STRING" --></font>
See the example
If you were to go directly to color.html without clicking on the
link you would see nothing at all. The content of the page, in this
case one word only is the string after the ? in the URL. If the
URL had been <A HREF="color.html?green"> you would see the
word green instead of red.
