What are the two ways that organisms on the bottom of deep sea food chains acquire energy? - 1807406
PHP is an object-oriented programming language, which means that you can create objects, which can contain variables and functions.
In This Chapter. In this chapter we will familiarize ourselves with the principles of object-oriented programming: class inheritance, interface implementation, abstraction of data and behavior, encapsulation of data and class implementation, polymorphism and virtual methods.n order for a programming language to be object-oriented, it has to enable working with classes and objects as well as the implementation and use of the fundamental object-oriented principles and concepts: inheritance, abstraction, encapsulation and polymorphism.