in the documentation PAYPAL OPTIONS > MODIFICATION CONFIRMATION EMAIL(Standard/Pro Form) it says the below at teh bottom of that page.
How do you actually run this test email that is mentioned "please run a test email with <?php print_r(get_defined_vars()); " ?
I need all of the paypal variables so I can use in an email and receipt directer page.
PHP Code: It is also possible to use PHP tags—optional (for developers). If you use PHP tags, please run a test email with <?php print_r(get_defined_vars()); ?>. This will give you a full list of all PHP variables available to you in this email. The $paypal variable is the most important one. It contains all of the $_POST variables received from PayPal’s IPN service—or from an s2Member Pro-Form integration (e.g., $paypal[“item_number”], $paypal[“item_name”], etc). Please note that all Replacement Codes will be parsed first, and then any PHP tags that you’ve included. Also, please remember that emails are sent in plain text format.