The MD5 hash is provided to help you verify the authenticity of a sale. This is especially useful for vendors that sell downloadable products, or e-goods, as it can be used to verify whether sale actually came from 2Checkout and was a legitimate live sale. We intentionally break the hash code for demo orders so [...]
Below is a sample PHP script that will catch all POST and GET parameters upon return and print the names of the parameters with their value back to the screen. This may help you develop your return process. Please note that we do not support third party scripts, so we also can not troubleshoot the [...]
