+$log = new CRM_Utils_SystemLogger();
+$log->alert('payment_notification processor_name=AuthNet', $_REQUEST);
+
+$authorizeNetIPN = new CRM_Core_Payment_AuthorizeNetIPN($_REQUEST);
+try{
+ $authorizeNetIPN->main();
+}
+catch(CRM_Core_Exception $e) {
+ CRM_Core_Error::debug_log_message($e->getMessage());
+ CRM_Core_Error::debug_var('error data', $e->getErrorData(), TRUE, TRUE);
+ CRM_Core_Error::debug_var('REQUEST', $_REQUEST, TRUE, TRUE);
+ echo "The transaction has failed. Please review the log for more detail";
+}