website system which will let customer order ticket online to attending some event.
when customer complete order(free or paid) online, they can either print out the bar code or any code, or by their mobile phone show the code to attending its event, we need to scan the bar code to verify its completed order customer.
so it have 3 part job to do
1. create a online ticket order system
2. mobile can show ordered ticket code(not sure its mobile apps or not)
3. a program that scanner on event place able to scan code to verify customer.
or you have any idea solution to above or any similar program, please let me know.