I'm trying to allow downloads on my site's redirection page. Everything is working fine and getting me back to the download page, but the variables d & d_id are not available in the url string to give users access to the files.
I know you can use <?php echo $GET['firstname']; ?> with PHP, but the only available strings are txn_id, first_name and last_name.
I see from the default download page that the link to download a file is:
http://www.e-junkie.com/ecom/df.php?txnid=XXXXXXXXX&d_id=XXXXXXX, but d_id isn't available in the string.