Course Introduction：Calling Class Methods Through NULL Class Pointers: An Undefined BehaviorThe provided code snippet raises the question of calling class methods...
2024-12-14 comment 0 1103
Course Introduction：Calling Class Methods with Null Class PointersWhen working with C , developers might encounter situations where they need to invoke class methods...
2024-12-22 comment 0 871
Course Introduction：Calling Child Class Functions from Parent ClassIn PHP, it's possible to call a function from a child class within a parent class, but it requires careful planning.Consider the following code example:class whale { ... } class fish extends whale { ...
2024-10-19 comment 0 1196
Course Introduction：This article aims to solve the common problem of calling instance methods to return undefined when managing an array of class instances in React Context. The core is to understand the return value characteristics of the Array.prototype.forEach method, which always returns undefined. The article will explain in detail how to collect method execution results by correctly using map methods, or use forEach reasonably when only side effects are required to be performed, so as to effectively manage and operate class instances stored in Context.
2025-08-20 comment 0 294
Course Introduction：This article explains in detail how to correctly call the parent class constructor and pass parameters in PHP class inheritance when the subclass overrides the constructor. It is important to point out that if the parent class constructor requires parameters, the subclass must provide these parameters when calling parent::__construct(), otherwise it will cause a runtime error. Through code examples, the correct practical methods are clearly demonstrated, aiming to help developers avoid common inheritance traps and ensure the integrity and stability of program logic.
2025-08-23 comment 0 799
Course Elementary 17930
Course Introduction："PHP Fun Class" happily takes everyone to learn PHP, making learning programming less scary. Learning programming is not a scary thing. This class will make learning PHP quite simple and interesting! !
Course Advanced 17358
Course Introduction："PHP Development Article Publishing System Tutorial" is based on PHP+MySQL to implement a simple article publishing system website, including front-end and back-end parts. The front-end mainly includes the front-end article display page and article details page, and the back-end includes article management, addition, and modification. , delete and other operations
Course Elementary 36820
Course Introduction："PHP Fun Class" makes learning PHP like playing a game, developing, fighting monsters, and breaking through levels, making learning programming no longer a scary thing, but fun and simple! If you find it difficult to learn PHP, then this course is very suitable for you to learn!
Course Elementary 25545
Course Introduction：Lecturer: php Chinese website-Teacher Zhu (Peter Zhu) Time: 2019.10.17 20:00-22:00 Topic: How to learn a new technology efficiently? Specific content: 1. In 2020, what other new technologies are worth learning? 2. How to learn front-end development efficiently? 3. How to learn PHP development efficiently? 4. Introduction and demonstration of new functions of phpStudy V8 5. Xiaopi panel function introduce
Course Intermediate 14920
Course Introduction："Practical Video Tutorial on PHP Development Article System Management" This video was recorded by the backing education teacher. It belongs to the practical development series and teaches you step by step how to use PHP to develop article system management.
2017-07-07 10:34:10 0 3 1578
oop - In Java, doubts about anonymous inner classes calling external class methods
2017-05-17 10:07:37 0 1 1170
Below PHP 7.0, how should I write a self-calling function?
Teacher, please tell me how to write a self-calling function under PHP 7.0 or below.
2018-12-13 09:43:01 0 0 924
In php, the class name::class, what does it mean?
I would like to ask: In the following PHP code, what does the class name::class mean? {code...}
2017-06-30 09:54:29 0 2 1013
PHP class variable calling problem
Is there any problem with writing like this?
2017-05-16 13:08:57 0 3 416
