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Coding a PHP-page for View, Add and Edit an order stored in a MySQL database. The page is a Master/Detail page (Order/Order items) with multiple lookup tables and instant calculation of amount and item price (Ajax/Java Script).
We have an existing system handle everything else (like Customer, Manufacturer, Products etc) and a list page for existing order. From this list your page will be called with id= (for actions: View and Edit) and directly from menu option Add order (Action: Add).
For more information please see attached PDF or send me a message.