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Listing All Server Variables by
Charles Carroll
The available Server Variables vary
based on the result of a combination of the browser software and the server software. They
are not always exactly the same on your server and with specific browsers as we document
here. There is an easy way to obtain a list. If the script is executed on a given
browser, the Server Variables displayed will reflect that browser plus your server.
filename=/learn/test/servereach.asp
<%
for each thing in request.servervariables
tempvalue=request.servervariables(thing)
response.write thing & "=" & tempvalue & "<br>"
next
%>
Since the above script appears in dozens of books and websites,
we wanted to provide you with a better version. This script may prove useful as it will
- list all the available server variables
- skipping the variables ALL_HTTP and
ALL-RAW since they are just a "glob" of all the other vars
- place blank variables at the end
- display code to retrieve that variable so you
can cut and paste into script
filename=/learn/test/serverall.asp
<html><head>
<TITLE>serverall.asp</TITLE></head>
<body bgcolor="#FFFFFF">
<%
Response.Write("<P><B>Server Variables</b><br>")
BlankVars="<P><B>Blank Server Variables</b><br>" & vbcrlf
quote=chr(34)
For Each Key in Request.ServerVariables
If instr(Key,"_ALL")+instr(key,"ALL_")=0 then
tempvalue=trim(request.servervariables(Key))
If len(tempvalue)=0 then
BlankVars=BlankVars & Key & ", "
Else
response.write "request.servervariables(" & quote
response.write Key & quote & ") "
response.write " =<br><B>" & tempvalue & "</b><p>" & vbcrlf
End If
end if
Next
response.write mid(BlankVars,1,len(BlankVars)-2)
%>
</body></html>
If the server has been secured with https://
then the following script will display some additional variables:
https://secure.activeserverpages.com/learn/test/serverall.asp
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