paypal ipn simple question

Question

I want to ask just a thing. I am using paypal for the first time. not by buttons. the data i sends through html page , is it returned by the ipn?

i am using a paypal class and this is my custom data:

 $this->paypal_class->add_field('cemail', $this->session->userdata('check_email'));
  $this->paypal_class->add_field('fname', $this->session->userdata('check_name'));

just wanna ask if it returned by the ipn or not.

Answer 1

Yes, PayPal returns POST variables back to your notify_url via what they call IPN, its really just a callback to a url you specify either via your post to them or settings in you paypal account.

Paypal returns following variables to you, if you specify a notify_url;

• mc_gross
• invoice
• settle_amount
• protection_eligibility
• address_status
• payer_id
• tax
• address_street
• payment_date
• payment_status
• charset
• address_zip
• mc_shipping
• mc_handling
• first_name
• mc_fee
• address_country_code
• exchange_rate
• address_name
• notify_version
• settle_currency
• custom
• payer_status
• business
• address_country
• address_city
• verify_sign
• payer_email
• txn_id
• payment_type

invoice is returned if you set it. It can be used as your own order-id/transaction-id.

txn_id is generated by paypal and is their own id for the transaction.

If you add items yourself you will PayPal also returns num_cart_items, item_name1 (item_name2, item_name3), quantity1 (quantity2, quantity3) and such.

More reading at https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_html_Appx_websitestandard_htmlvariables