What does php design pattern mean?

Introduction to PHP

PHP is a language developed in C language. C language is a real Cross-platform language, which also determines that PHP is cross-platform. PHP is a language that can run on Windows Server or Linux operating system servers. Like Java and C#, the code is stored and run on the server side, and it will run on the browser. End-executable HTML and scripts are sent to the browser for execution. Compared with Java and C#, PHP has more process-oriented encapsulation and reduces support for some data types.

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Definition of Design Pattern

Design Pattern is a set of A summary of code design experience that has been used repeatedly, is known to most people, and has been cataloged. The purpose of using design patterns is to reuse code, make the code easier to understand by others, and ensure code reliability. Design patterns are win-win for oneself, others and the system; design patterns make coding truly engineering; design patterns are the cornerstone of software engineering, just like the structure of a building.

The reasonable use of design patterns in projects can perfectly solve many problems. Each pattern has corresponding principles to correspond to it. Each pattern describes a problem that keeps recurring around us. , and the core solution to the problem, which is why it is widely used.

There are about 23 common object-oriented design patterns.

Advantages of Design Patterns

● Reuse solutions. Design pattern itself is a general solution to a certain type of problem. It is a higher level of reuse, which goes beyond code reuse.

● Determine common terms. Communication and collaboration in development require a common vocabulary and a consensus on the problem. When you have design ideas that you want to express but cannot express clearly, and even if you express them, they will be misunderstood by colleagues, design patterns show communication. The advantage.

● Code is easier to modify and maintain. Because design patterns are time-tested solutions, their structures are formed after long-term development, and they are good at coping with changes. The design patterns themselves also encapsulate the change points.

● Patterns help improve your thinking level. After learning the model, even if you don't use the methods in the model, you will be better able to adopt better strategies to solve problems.

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