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Course Introduction：This article explains PHP's Factory Pattern, a creational design pattern for object creation. It details how to create flexible object instantiation using factory classes and methods, highlighting benefits like loose coupling, improved code organiza

2025-03-10 comment 0  530

Course Introduction：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.

2025-07-13 comment 0  704

Course Introduction：The factory design pattern creates objects centrally through a factory class, avoiding the client using new hard code to instantiate specific classes; 2. Define the abstract product Pizza, and the specific products CheesePizza, VeggiePizza and PepperoniPizza inherit it; 3. PizzaFactory returns the corresponding Pizza instance according to the input type; 4. The client creates objects through the factory and calls its methods to realize the encapsulation of loose coupling and creation logic, which is convenient for expansion and maintenance. This implementation is a simple factory model, ending with a complete sentence.

2025-08-02 comment 0  814

Course Introduction：This article guides PHP developers in selecting appropriate design patterns. It emphasizes analyzing project requirements, identifying recurring issues (e.g., tight coupling, code duplication), and researching suitable patterns (Singleton, Factory,

2025-03-10 comment 0  601

Course Introduction：The Front Controller design pattern serves as a centralized entry point for handling incoming requests in a PHP application. It streamlines routing, templating, and security checks, enabling efficient changes and improved maintainability. By redirect

2024-10-23 comment 0  755

Course Advanced  14102

Course Introduction："PHP Advanced Design Patterns Video Tutorial" introduces the concept of design patterns and introduces some commonly used design patterns, such as singleton pattern, adapter pattern, etc.

Course Advanced  9643

Course Introduction："Power Academy Design Pattern PHP Video Tutorial" first introduces the design pattern, tells the use and importance of the design pattern, and explains in detail the occasions when the design pattern is applied. Next, a number of design patterns are introduced through code examples. Finally, a comprehensive and in-depth case analysis illustrates how to use design patterns to plan new applications, how to write these patterns in PHP language, and how to use the design patterns introduced in the video to modify and refactor existing code blocks.

Course Elementary  13819

Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.

Course Elementary  82353

Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).

Course Elementary  13173

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.