I am building a website and I need to have an image gallery which viewers can use to look at photos.
Furthermore, I want people to be able to click on an image and then purchase prints. Is there a good PHP product that I can purchase to do this?
I would look into PhotoStore as an option,
PhotoStore by KTools (Commercial, starts at $149 - Lifetime updates)
PhotoStore is a complete professional solution for selling your photography, stock photos, artwork, prints, products, videos and other digital files. PhotoStore is completely automated including a backend management area that allows you to add categories, configure prints, upload photos and other files, assign keywords & prices, configure website settings, add shipping costs, add tax, create coupons and discounts, add site news, manage members, view orders, create photo collections and much more.