The PayPal PHP Sample Code by PayPal presents how to communicate with the API to implement payment features into applications. Examples cover billing, invoices, notifications, payment experience, payouts, and sale.
We have added eight APIs to the ProgrammableWeb directory in categories such as Marketing, Nutrition, and Payments. Among the new additions is the Payfirma Push API, which offers a mobile payment system to developers. Here, we summarize the new additions and how they can assist developers.