PHP is a simple, web-centric programming language with close ties to the C. PHP is included with almost every standard Linux distribution and works closely with the Apache web server to deliver fast and dynamic web content. PHP is broadly adopted and commonly used for both small websites as well as enterprise web applications.

PHP and INDI

The server-side logic in INDI is written using object-oriented PHP and standard design strategies including model-view-controller, data access and transfer objects, and separation of business, data access and presentation logic. PHP was selected in place of more powerful and complex programming toolsets such as J2EE due to its simplicity and ease of implementation and deployment.