Sample Source Code: Leanpub PHP Sample Code by Matthias Noback

The Leanpub PHP Sample Code by Matthias Noback demonstrates API interaction, providing examples to create coupon, include individual purchase, and discount package.

Sample Source Code: Google Books PHP Sample Code by Google

The Google Books PHP Sample Code by Google presents API interaction to integrate book search capabilities into applications. Resources include token authentication, service account, and simple query.

API.AI PHP SDK by Ivan Boldyrev

The API.AI PHP SDK provides a conversational platform designed for PHP applications. It requires PHP 5.5.0+.

League of Legends PHP SDK by Lam Phuong Phan

The League of Legends PHP SDK offers integration with the Riot Games API which provides in game information such as rankings, runes, and masteries. It requires PHP 5.5+.

Docverter PHP SDK by Mehmet Fatih

The Docverter PHP SDK by Mehmet Fatih converts HTML and PDF files. It works with POST variables, requests, and responses to obtain a given document available in the result link.

Nutritionix PHP SDK by Leejay Gajitos

The Nutritionix PHP SDK by Leejay Gajitos enables API communication to access nutritional database resources. Resources include configuration, endpoints, and methods.

Dial Once PHP SDK by Dial Once

The Dial Once PHP SDK offers a customer care resolution platform for PHP applications. It requires PHP 5.3.0+.

MasterCard Audiences PHP SDK by MasterCard

The MasterCard Audiences PHP SDK offers a purchasing behavior analysis platform designed for PHP applications. It requires PHP 5.2.0+.