Parsing URL Variables

[alison]

I have a page (not on my server) that links to a page on my server.

This URL has several variables that I want to grab and use on my page. The URL looks like this:

http://www.somedomain.org/test.cgi?id=ABC&isbn=1234&volume=82

By using cgi.HTTP_REFERER I am able to display the URL, but I am having trouble parsing out the variables to use later on the page.

How do I "grab" the values of id, isbn, and volume from this URL?

Thank you for your help.
Alison

[Dan_Bracuk]

Use list functions. The url is a nested list. The outer list has an ampersand delimiter and the inner lists have an equal sign delimiter.

[Newsgroup_User]

alison@ut wrote:
> I have a page (not on my server) that links to a page on my server.
>
> This URL has several variables that I want to grab and use on my page. The
> URL looks like this:
>
> http://www.somedomain.org/test.cgi?id=ABC&isbn=1234&volume=82
>
> By using cgi.HTTP_REFERER I am able to display the URL, but I am having
> trouble parsing out the variables to use later on the page.
>
> How do I "grab" the values of id, isbn, and volume from this URL?
>
> Thank you for your help.
> Alison
>

Most of us would use url.id, url.isbn and url.volume. You could also
use url['id'], url['isbn'] and url['volume'] if you like on any version
of ColdFusion released this century.

<cfdump var="#url#"> may also be informative.

I.E. you are working to hard if you are trying to parse
cgi.http_REFERER. ColdFusion has already done this and dumped
everything into the URL structure. Of course, if I was going to use a
CGI variable, I would use cgi.query_string and parse as nested lists.

But is 'test.cgi' a ColdFusion template?

[alison]

Thank you both for your replies!

The referring page is not a CF page, so i guess I will need to parse the URL using cgi.query_string. I will look for information on how to do that since I have never used that before.

Thanks again!
Alison

[Newsgroup_User]

alison@ut wrote:
> Thank you both for your replies!
>
> The referring page is not a CF page, so i guess I will need to parse the URL
> using cgi.query_string. I will look for information on how to do that since I
> have never used that before.
>
> Thanks again!
> Alison
>

The referring page has nothing to say about this. If the page on your
server is a CFML page, then the URL variables will be in the URL
structure. ColdFusion handles this behind the scenes whenever a request
is made, no matter where the request comes from, ColdFusion doesn't care.