Working version of demo code provided by Cybersource to create a payment token using silent post secure acceptance method

I had the hardest time working with Cybersource Secure Acceptance service. I found multiple versions of documentation, each with different information like what endpoint to hit.

The PHP demo code provided in the docs was missing pretty much everything needed to make a successful call and create a payment token. Using the code provided by Cybersource, I had to figure out what parameters I was missing on each call. The only error message that was returned to me and recorded in the logs was "missing or invalid request parameter".

UPDATE : When the error is 102 (Request parameters are invalid or missing), the response from Cybersource will include "invalid_fields" with a comma separated string of invalid fields

I updated the code and it should work out-of-the-box.

Create your profiles here: https://ebctest.cybersource.com. Note that you need to contact Cybersource to enable the secure acceptance option for your test account. Once Secure Acceptance has been added to your account, create a profile. The profile will provide the profile_id, access_key, and secret_key required in security.php. Set the customer response page to http://[your_test_domain]/receipt.php

Warning The following doc has the wrong endpoints, but I did use this doc to get the promo working:

Docs 1: http://apps.cybersource.com/library/documentation/dev_guides/Secure_Acceptance_WM/html/wwhelp/wwhimpl/js/html/wwhelp.htm#href=create_token.07.1.html

This doc has the correct endpoints, but not sure if it has other mistakes

Docs 2: http://apps.cybersource.com/library/documentation/dev_guides/Secure_Acceptance_WM/Secure_Acceptance_WM.pdf?searchid=1413330942690

Good luck!