header() not working?

Hi gang:

For several years I have had an example of a redirect working on my college’s Server for my students to review.

The code is simple:

header ("Location:$where"); 
exit(0); 

The $where is URL’s such as “amazon.com” coming from a POST:

$where = isset($_POST['where']) ? $_POST['where'] : null;

Like I said, this has worked for years and now it doesn’t.

I suspect something has changed in the school’s Server, but I don’t know what that may be. 

Any ideas as to why and how to fix it?

Cheers,

tedd
_______________
tedd sperling
[email protected]