Handling Online Payments Part 11 - Finishing Up Our Payment Form
In the final part of this series we make some small changes to make our form ready for live websites and offer a few ideas for how you can improve the form even further.
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Handling Online Payments Part 6 - Preventing Duplicate Submissions with POST/REDIRECT/GET
The payment form we created in the first five parts of this series is very good. But it could be better. Part 6 begins a new chapter in this series where we improve upon our payment to make it more us...
Precision Math with PHP
Handling dollar amounts isn't as simple as adding two numbers together. PHP, and other programming languages, have limitations to how precise they can be. This blog post will show you how to do precis...
