How php understands object-oriented

Object-oriented programming (OOP, object-oriented programming) is a computer programming architecture. A basic principle of OOP is that a computer program is composed of a single subroutine that can function It is composed of units or objects that act on it.

OOP achieves the three goals of software engineering: reusability, flexibility and scalability.

In order to realize the overall operation, each object can receive information, process data and send information to other objects. Object-oriented has always been a hot topic in the field of software development. First of all, object-oriented is in line with the general rules of how humans look at things.

Secondly, the use of object-oriented methods allows each part of the system to perform its duties and perform its duties. This opens the door for programmers to write code that is simpler, easier to maintain, and more reusable. Some people say that PHP is not a true object-oriented language, and this is true.

PHP is a hybrid language. You can use OOP or traditional procedural programming.

However, for large projects, you may need to use pure OOP to declare classes in PHP, and only use objects and classes in your project.

Understanding of object-oriented programming:

For example:

If you want to build a computer classroom, you must first have a There must be N computers, N tables, N chairs, whiteboards, projectors, etc. in the room. What are these? As we just said, these are objects, entities that can be seen. We can say The units of this computer classroom are these physical objects, which together make up this computer classroom. So we are doing programs. What does this have to do with object-oriented?

Developing a system program is similar to building a computer classroom. You abstract each independent functional module into a class to form an object. The system is composed of multiple objects. These objects can receive information and process data. and interact with sending messages to other objects, etc. This constitutes an object-oriented program.

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