use of abstract class in php

Abstract class 1. An abstract class is a class that has an abstract keyword in front of the class and an abstraction method (which adds the abstract keyword before the class method function keyword). 2. Abstract classes cannot be instantiated

Transferred from: http://blog.csdn.net/sunlylorn/article/details/6124319Abstract class1. An abstract class is a class that has an abstract keyword in front of the class and an abstraction method (which adds the abstract keyword before the class

Interface differs from abstract class, interface abstract class difference What is the difference between an interface and an abstract class What is the basis of your choice to use interfaces and abstract classes? The concepts of interfaces and

For PHP programmers, the most difficult point to grasp is the PHP abstract class application of this piece of knowledge. As a novice is not yet to use object-oriented knowledge to programming, but later development, using classes to encapsulate or

This article mainly introduces the php interface and abstract class examples, and explains in detail. if you need them, you can refer to section 1. abstract class 1. abstract class refers to a class with abstract keywords added before the class and

Normal07.8 磅02falsefalsefalseMicrosoftInternetExplorer4 Abstract class 1. An abstract class is a class that has an abstract keyword in front of the class and an abstraction method (which adds the abstract keyword before the class method

This article mainly introduces the php interface and abstract class examples, and explains in detail. if you need them, you can refer to section 1. abstract class 1. abstract class refers to a class with abstract keywords added before the class and

The difference between an interface and an abstract class. What is the difference between an interface and an abstract class? what is the basis for using an interface and an abstract class? The concepts of interfaces and abstract classes are

Abstract class 1. An abstract class is a class that has an abstract keyword in front of the class and an abstraction method (which adds the abstract keyword before the class method function keyword). 2. Abstract classes cannot be instantiated

: This article mainly introduces the abstract class (abstractclass) and interface (interface) in PHP. For more information about PHP tutorials, see. I. abstract class 1. abstract class refers to a class with abstract keywords added before the class