Order number in email receipt

How do I put an invoice number in the email receipt. I can see the code might be something like:

<?php
if(!session_id()) session_start();
echo ((isset($_SESSION["eCart1_OrderID"]))?$_SESSION["eCart1_OrderID"]:"");
?>

But can't see where to put the code using UE. Tried various but nothing seems to work without corrupting something.

This php code will print out the session variable specified. You would need to put this into the email template that you are working with, the php code needs to be within the html of the template. Please post back with the template file and what you have tried, I can show you where you should be placing this. Also, where is the Universal Email server behavior called from? If it is on a page that only loads after emptying the session then there will be a problem displaying the session like this.

Ideally we need the OrderID number in the email generated on the confirm.php page and on the checkout_success.php page to act as an invoice number (that's unless you suggest a better way to create an invoice number).

I've attached these two UE files but I'm not sure if this is the best way to put code into a UE template. I think I should be using the UE in DW display and inserting an ecart binding?

Also I understand when you say one of these originator pages could be closing the session. How do I get around that?

In the email file for the checkout success page you have the order number on line 40 set like this:

<p style="color:#50516B; /* Accent_1 */ margin-bottom:7px; font-size:medium;">Invoice number: ?</p>

You should make sure to set it to the session variable like you have on the confirm page:

<p style="color:#50516B; /* Accent_1 */ margin-bottom:7px; font-size:medium;">Invoice number:<?php echo ((isset($_SESSION["eCart1_OrderID"]))?$_SESSION["eCart1_OrderID"]:"")?></p>

If you are not getting the order id to show after this then there must be resetting of the session occurring somewhere. Since you would normally go from the confirm to the checkout success page the problem would be on one of these two pages. Please give this a try and let us know the result that you get.

That did it.

Thanks

Nice to hear that, let us know if you have any other questions.