Creates and reads DTA and DTAZV files containing money transaction data (Germany).

Status: 1.4.3 (stable) released on 2012-06-12
License: BSD style
Maintained: Yes
Open Bugs: 3

PHP client to Brazilian payment gateway PagamentoCerto

Status: 0.2.3 (alpha) released on 2010-03-04
License: LGPL
Maintained: No
Open Bugs: none

PayPal SOAP API client

Status: 0.5.1 (beta) released on 2012-09-25
License: MIT
Maintained: Yes
Open Bugs: 1

A PHP5 Payment process API

Status: 0.3.1 (alpha) released on 2010-10-25
License: BSD Style
Maintained: Yes
Open Bugs: 4

Several other PHP projects provide packages of their software that are installable using the PEAR infrastructure. A list of these projects can be found in the channels section.