Payment Module and XML?

[Kim]

Moderator's note - your 2 threads have been merged into one since they are closely related.

[cmcneal]

An Update:

I am able to fulfill all requirements except for receiving responses after redirection. But here is the summary of the flow of what I have done:

a. create an XML string
b. set cURL to pass in the XML string using the format &parm=<XML string>
c. receive the response from cURL
d. parse the response from cURL
e. use the URL specified in the response for redirection
f. redirect using PHP's header command and follow it with a die command
g. user will input the info requested in the redirected payment screen.
h. payment gateway will redirect the screen back to the client and response sent
i. Read and parse response.

It is step i, that I need assistance.

Looking forward to anyone's suggestions.