Website (Zencart) integrate into invoice form QR barcode with dynamic info (inv num

General information for the website: packaging product retailer
Kind of development: Customization of existing website
Num. of web pages/modules: 1
Description of every page/module: Website running on Zencart - www.polypostalbags.co.uk
When printing invoices we need to integrate QR barcode with dynamic information (invoice number)
I believe code will need to be added into 2 php files

http://polypostalbags.co.uk/xxxxx/invoice.php?oID=6855 (like exmple)
Description of requirements/features: Website running on Zencart - www.polypostalbags.co.uk
When printing invoices we need to integrate QR barcode with dynamic information (invoice number)
I believe code will need to be added into 2 php files

http://polypostalbags.co.uk/xxxxx/invoice.php?oID=6855 (like exmple)
Extra notes: Website running on Zencart - www.polypostalbags.co.uk
When printing invoices we need to integrate QR barcode with dynamic information (invoice number)