1-1 Examples of object-oriented assumptions
1-2 My subtle understanding
(2) Create a class using Class
2-1 Create a class using Class
(3) Class attributes and class methods
3-1 Class attributes and class methods
(4) Use the New function to instantiate the object
4-1 Use the New function to instantiate the object
(5) Study notes on object-oriented development
5-0 Study Notes on Object-Oriented Development
5-1 $this keyword in the object
5-2 Initialize object function __construct()
5-3 Destructor __destruct()
5-4 Simple example without using $this
5-5 Simple example of using $this
5-6 Use initialization $this release function
(6) Class encapsulation and application
6-1 Class encapsulation and application
(7) Inheritance and application of classes
7-1 Inheritance and application of classes
(8) Abstract methods and classes of classes
8-1 Abstract methods and classes of classes
(9) Common keywords in categories
9-1 Common keywords in classes
(10) Interface application in class
10-1 Interface application in class
(11) Introduction and advantages of polymorphism
11-1 Introduction and advantages of polymorphism
(12) Object-oriented summary
11-1 Object-oriented summary