1-1 Introduction to object-oriented programming ideas

1-2 Basic concepts of object-oriented

1-3 $this keyword in method

1-4 Use OOP to complete the registration process

1-5 Construction method

1-6 Destructor method

1-7 Object passing by value and cloning

1-8 MySQLDB class preliminary

2-1 Yesterday review 1

2-2 Static members - static properties

2-3 Static members - static methods

2-4 class constant

2-5 Automatic loading mechanism of class files

2-6 Serialization and deserialization of objects

2-7 Class inheritance

2-8 override rewrite

3-1 Yesterday review 2

3-2 access control modifier

3-3 Improve the encapsulation and functionality of the MySQLDB class

3-4 final final class and final method

3-5 abstract abstract class

3-6 interfaceinterface

3-7 Introduction to overload

3-8 Attribute overloading (Part 1)

3-9 Property overloading (Part 2)

3-10 Method overloading

4-1 Yesterday's review

4-2 Magic methods and magic constants

4-3 late static binding

4-4 Singleton pattern

4-5 Singleton mode of MySQLDB class

4-6 Factory pattern

4-7 General traversal of objects

4-8 Custom traversal of objects

4-9 type constraints

4-10 Related functions of classes and objects

4-11 Namespace preliminary

4-12 Space members and subspaces

4-13 Space member access

4-14 Space introduction

4-15 global space