10 article recommendations for implementing multiple inheritance

Before we introduce the interface, we need to know why to use the interface, here to introduce you. So why use an interface? In computer languages, only a handful of object-oriented objects support multiple inheritance, and the PHP language we learn, like most languages, does not support multiple inheritance. To be blunt, a parent class can have more than one child class, but subclasses can have only a single parent class. What is multiple inheritance? Multiple inheritance is a subclass, inheriting two or more parent classes, or multiple inheritance, which is not allowed in PHP. If you want to implement multiple inheritance in PHP, then we need to use the interface. Interfaces can be seen as a way to resolve multiple inheritance, and PHP's object-oriented interface is similar to other object-oriented language interfaces. The syntax of the interface class is explained by the interface keyword, and the class can contain only the non-implemented methods and some member variables in the following format: interface interfacename{function interfaceName1 () {} function InterfaceName2 (

1. PHP Object-oriented multiple inheritance and interface usage

Introduction: Before introducing the interface, we need to know why to use the interface, here to introduce you. In computer languages, only a handful of object-oriented objects support multiple inheritance, and the PHP language we learn, like most languages, does not support multiple inheritance. To be blunt, a parent class can have more than one child class, but subclasses can have only a single parent class. What is multiple inheritance? is a subclass, inheriting two or more parent classes, that is, multiple inheritance, is not allowed in PHP. If you want to implement multiple inheritance in PHP, then we need to use the interface. Interfaces can be seen as a way to resolve multiple inheritance, and PHP's object-oriented interface is similar to other object-oriented language interfaces.

2. Detailed introduction to Java internal classes

Summary: Multiple inheritance refers to the fact that a class can inherit behavior and characteristics from more than one parent class at the same time, but we know that Java only allows single inheritance to ensure data security. But sometimes, we do need to implement multiple inheritance. Fortunately, Java provides two ways for us to implement multiple inheritance in twists and turns: interfaces and inner classes. Among them, one of the inner classes and its important function is to implement multiple inheritance. In addition, the inner class can also be very well implemented to hide (Private member inner Class). There are four types of inner classes, namely member inner class, Static inner class, local inner class, and anonymous inner class.

3. Java Improvement Chapter (eight)-----implement multiple inheritance

Summary: Multiple inheritance refers to the fact that a class can inherit behavior and characteristics from more than one parent class at the same time, but we know that Java only allows single inheritance to ensure data security. Sometimes we think that if multiple inheritance is often a bad design in the system, we often need to think about not how to use multiple inheritance, It's about whether or not your design has problems. But sometimes we do need multiple inheritance, and in real life there are real situations, such as heredity: we inherit the behavior and characteristics of the father and inherit the behavior and characteristics of the mother. Fortunately, Java is very kind and understands us, and it provides two ways for us to make twists and turns to achieve multiple inheritance: interfaces and internal

4. C # Learning Diary---Interface (interface) type

Summary: An interface contains a definition of a set of related functions that a class or struct can implement, for example, using an interface to include behaviors from multiple sources in a class. Because the C # language does not support multiple inheritance, multiple inheritance can be implemented through interfaces. In short, the interface contains only the declarations of members (properties, events, indexers). How the definition of a member is implemented is determined by his derived class.

5. _php tutorials on the learning experience of PHP interfaces shared by programmers

Introduction: The programmer shares the learning experience about PHP interfaces. Fire Station College (liehuo.net) network programming recently encountered difficulties in the process of learning PHP5 interface, the book said is a way to achieve multiple inheritance, but I still do not know how to actually

6. PHP Interface Learning _php Tutorial

Introduction: PHP Interface learning. Recently Learning PHP (as the current mainstream development language) 5 interface of the process encountered difficulties, the book is a way to achieve multiple inheritance, but I still do not know how to achieve the specific.

7. PHP Implements multiple inheritance instances

Introduction: A friend of the recent PHP development asked a question about the multiple inheritance of PHP, two people said a long time, in fact, they did not understand what is multiple inheritance, today is free, deliberately multiple inheritance this concept to a detailed understanding of a bit, also to talk about the implementation of multiple inheritance in PHP some views.

8. Java Software Engineering php-14. Object oriented

Introduction: Java Programmer learn php-14. Object-oriented same point: 1. Also class + Method 2. Also does not allow multiple inheritance 3. There are also interface that can be used interface to achieve multiple inheritance 4. There are also abstract classes 5. There are also static methods 6. You can also disable the extension of differences by using the final keyword: 1.class does not have access Modifier2. The default access modifier for properties and methods is public

9. "Go" PHP through the interface to achieve multiple inheritance

Introduction: "Go" php through the interface to achieve multiple inheritance PHP class although is single-inheritance, but can be implemented through other special methods of multiple inheritance, such as the use of interface implementation, as long as the characteristics of the class is abstracted as an interface, and through the way the interface to enable the object has multiple identities, so that you can simulate multiple inheritance. Here is an example of using an interface to simulate multiple inheritance, the source code is as follows: <?? interface? userinterface{?//definition

10. Programmer-Shared learning experience on PHP interfaces

Introduction: The programmer shares the learning experience about PHP interfaces. Fire Station College (liehuo.net) network programming recently encountered difficulties in the process of learning PHP5 interface, the book said is a way to achieve multiple inheritance, but I still do not know how to actually

"Related question and answer recommendation":

Does PHP work with Trait+interface to achieve multiple inheritance?