DPS for payments – For anyone using (or planning to use) DPS for payments processing, these guys have published the interface I’ve been working on over the past dozen or so Payment Express implementations.

It makes billing cards as simple as:

$dps->chargeCard($name, $number, $exp_month, $exp_year, $amount);

There’s also methods for loading cards with DPS, and recurring billing. Hopefully it’ll be useful to some of you.

WordPay – Integration with WorldPay is similar to PayPal integration, you can use WorldPay callback feature.