The document discusses learning object oriented programming (OOP) in PHP. It provides an introduction to OOP principles in PHP and walks through 23 steps to create a PHP class called "person" with properties like name and methods like set_name() and get_name() to set and get the name property. It shows how to instantiate person objects, set their property values, and access the property values. The goal is to help readers understand the basics of building objects and classes in PHP OOP.