亚洲国产日韩欧美一区二区三区,精品亚洲国产成人av在线,国产99视频精品免视看7,99国产精品久久久久久久成人热,欧美日韩亚洲国产综合乱

Home PHP Libraries Other libraries Factory design pattern PHP classes
Factory design pattern PHP classes
<?php
interface IHuman
{
  function GetName();
}
class ManClass implements IHuman
{
  public function GetName()
  {
    return "I'm man."."<br>";
  }
}
class WomanClass implements IHuman
{
  public function GetName()
  {
    return "I'm Woman."."<br>";
  }
}

In object-oriented programming, the most common method is a new operator to generate an object instance, and the new operator is used to construct an object instance. But in some cases, the new operator directly generating objects will cause some problems. For example, the creation of many types of objects requires a series of steps: you may need to calculate or obtain the object's initial settings; choose which sub-object instance to generate; or you must generate some helper objects before generating the object you need. In these cases, the creation of a new object is a "process", not just an operation, like a gear transmission in a larger machine.

Disclaimer

All resources on this site are contributed by netizens or reprinted by major download sites. Please check the integrity of the software yourself! All resources on this site are for learning reference only. Please do not use them for commercial purposes. Otherwise, you will be responsible for all consequences! If there is any infringement, please contact us to delete it. Contact information: admin@php.cn

Related Article

Factory design pattern in Java example Factory design pattern in Java example

13 Jul 2025

The factory pattern is to encapsulate object creation logic through a factory class, so that the caller does not need to care about the specific implementation class. 1. Define the unified behavior specification of interface Shape; 2. Create Circle and Rectangle implementation classes; 3. Write ShapeFactory factory class to return different instances according to parameters; 4. Use the factory class to obtain objects and call methods. This mode is suitable for scenarios where object creation is complex, the type is often changed, or the principle of opening and closing is required. It can effectively decouple the caller and specific classes and reduce maintenance costs.

Explain the Factory design pattern in Java. Explain the Factory design pattern in Java.

17 Jul 2025

TheFactorydesignpatterninJavaisacreationaldesignpatternthatcentralizesandabstractsobjectcreationlogic,reducingtightcouplingbetweenclasses.1)Itallowsobjectstobecreatedwithoutexposingtheinstantiationlogictotheclientcode.2)Itisusefulwhentheexacttypeofob

How to implement a factory design pattern in C  ? How to implement a factory design pattern in C ?

17 Jul 2025

ToimplementthefactorydesignpatterninC ,firstdefineacommoninterface,thencreateconcreteproductclasses,implementafactoryclasswithastaticcreationmethod,andfinallyusethefactorytodecoupleobjectcreationfromclientcode.(1)DefineanabstractbaseclassProductwith

PHP Design Pattern: Adapter PHP Design Pattern: Adapter

27 Oct 2024

The Adapter Design Pattern is a structural pattern that allows objects with incompatible interfaces to work together. It acts as an intermediary (or adapter) between two objects, converting the interface of one object to the interface expected by the

How to Elegantly Serialize Classes to a Stream in C   Using the Factory Pattern? How to Elegantly Serialize Classes to a Stream in C Using the Factory Pattern?

29 Oct 2024

Serialization to a Stream for a Class DemystifiedWhen faced with the need for object serialization in C , many resort to a familiar pattern that...

PHP Design Patterns Examples:?Singleton, Factory, Observer, Strategy. PHP Design Patterns Examples:?Singleton, Factory, Observer, Strategy.

26 Mar 2025

The article discusses the benefits of Singleton, Factory, Observer, and Strategy patterns in PHP, focusing on their roles in improving code efficiency, maintainability, and flexibility.

See all articles