coupon website

develop a coupon website using php language; both local and national coupons; two main sections: one for the consumers to chose and print local (be able to input zip code) and national coupons-each coupon must have a sequential number, bar codes for proper ID, total number of coupons, money saved counter; second for business owners to manage their own coupons (individual account password accessible)-to be able to input the design and creation of their coupons, delete or modify. Billing to and payment from the business, notification to us when a business' account is due. must be able to add new features at a later date for new contract