![]() So I would strongly advise against using the latter type of coupon codes just on the basis that they "look cool". But even if they are randomly-generated nonsense phrases, the fact that the characters follow a logical pattern still makes it much more user-friendly than something like R7QZ8A92F1. Some of these are obviously human-created (which you might want to have the option of), but they can also be generated using a dictionary list. Companies like Dreamhost use these for their promo codes, e.g.: Promo60 Features Supports QR Code versions (size) 1-40 Numeric, Alphanumeric, 8-bit and Kanji encoding. Based on libqrencode C library, provides API for creating QR Code barcode images (PNG, JPEG thanks to GD2). ![]() Optionally, if you have different types of coupons, you could prefix the codes with something, e.g.: CX00019 QZ0001CĪlternately, you could even use dictionary words in the coupon, as such coupon codes are easier to remember and faster for users to type. PHP QR Code is open source (LGPL) library for generating QR Code, 2-dimensional barcode. I would just use incremental IDs, such as those generated by whatever RDBMS you use. It includes a huge set of table manipulation functions (record addition, change, view, copy, and removal), table sorting, filtering, table lookups, and more.If there are no security requirements for these, then you don't really need randomly generated codes. All you need to do is to write a simple calling program (a utility to do this is included). PhpMyEdit generates PHP code for displaying/editing MySQL tables in HTML. PhpMyEdit application provides an instant table editor. How many times have you hand coded a MySQL table editor in PHP? PhpMyEdit: Instant MySQL Table Editor and PHP Code Generator
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