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Editor to share with you how to use the abstract class of php, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

In PHP, abstract classes are mainly used for type hiding and acting as global variables. We can construct an abstract description of a fixed set of behaviors, which can be implemented in any possible concrete way. As long as there is an abstract method in the class, this class is an abstract class.

This article operating environment: Windows10 system, PHP7.1 version, Dell G3 computer.

What is the abstract class usage of php

Abstract class is often used to represent the abstract concepts derived from the analysis and design of the problem domain, which is the abstraction of a series of concrete concepts that look different but are essentially the same.

An abstract class is incomplete and can only be used as a base class. In the object-oriented method, abstract classes are mainly used for type hiding and acting as global variables.

In object-oriented methods, abstract classes are mainly used for type hiding. Construct an abstract description of a fixed set of behaviors, but this group of behaviors can be implemented in any possible way. This abstract description is the abstract class, and this set of possible concrete implementations represents all possible derived classes. The module can operate on an abstract body. Because the module depends on a fixed abstract, it can not be modified; at the same time, the behavioral function of the module can be extended by deriving from this abstract.

The operation of the example is as follows:

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