A friend who used the ePRO payment interface to see
What happens to r9_btype=2 server Point-to-point communication when ePRO the callback in the payment interface? I've never been in touch with a paid thing before, God help me.
------to solve the idea----------------------
R9_btype=1, stating that you have successfully traded, you should change the order status in your database to paid, but for unknown reasons (such as network problems) you did not update the status of the order in your database (or unpaid)
At this time r9_btype=2 is useful, it is to inform you that the transaction is successful, you can change the status of the order again
Of course you can't let it keep the point-to-point communication, so you should do it when r9_btype=2
if ($r 9_btype==1) {
Success Page
}elseif ($r 9_btype==2) {
Change Order status ...
echo ' success ';//Must start with "success", then no point-to-point communication
}
