Passing and Parse PayPal IPN Custom field

Question

I have setup a PayPal IPN file. When the user is at the site and press submit details about the transaction is uploaded to the db. The relevant id is sent via PayPal as the

Answer 1

This expands on JustAnil's solution.

HTML:

and your IPN script would look something like this:

You may want to double check that parse_str performs urldecode on resulting array elements.