Multiple PayPal Forms in same location - how?

[martin_undefined]

In terms of passing it to and from PayPal, that's no problem. Just update the $_POST["custom"] value to store something like "X,Y" where X is the form ID and Y is the submission ID - instead of just passing the submission ID like you do now. You could then just split the return value and extract the values for finalizing the submission.

PHP Code:

list($form_id, $submission_id) = split(",", $_POST["custom"]); 


The good news is that I do know what form the user is submitting. So if I understand you correctly, I need to:

1) Call my form and pass the id in eg. myform.php?form_id=5

2) Once the session has been started, store the form_id in the session

3) Pass it into Paypal using the custom value and then bring it back in so the ft_api knows where to store the submission

But I'm confused by your last point on spliting the return value - where does that process happen i.e. which file contains list($form_id etc?

Thanks

Martin