An implementation of the NMI (Network Merchants International) payment gateway
Currently the only implementation. See example.php
for information on how to use, essentially two main methods are exposed:
// creates an object, provide API key and optional redirect URL
$nmi=new Nmi3Step(NMI_KEY);
// returns a submission url as step 1, send a numeric amount to charge
$url=$nmi->get_url($amount);
// Sends the payment with a provided token. Returns a payment result or throws an exception
$payment=$nmi->submit_payment($_GET['token-id']);