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Course Intermediate 5779

Course Introduction：JSON is a universal lightweight data storage and exchange format that is independent of programming languages. It is written based on JavaScript object syntax and is very suitable for Web development. Ajax is an asynchronous data loading technology that allows users to obtain data without leaving the current page. The user experience is excellent. This course combines json and ajax technologies to demonstrate the application scenarios of these two technologies with examples (the knowledge of php and mysql involved can be temporarily neglect)

Self-study IT network Linux load balancing video tutorial

Course Intermediate 11337

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17638

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

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Create PHP parallel processing from getResult principle request

I want to do some kind of multi-threading in a PHP8/Symfony6 environment, the way it works is as follows: I am making a principle request that serves about a million rows and I want to create multiple parallel processes to process the rows at the same time. My request is made via getResult() which serves the doctrine object. Is there a way to create a thread with an array of objects as parameter. Then create threads whenever my "queue" is filled with data? I found some information about "pthreads" or "popen" but I'm not sure if it's still relevant because the main

2023-09-14 19:30:46

Routing organizational principles and best practices in React applications

I have multiple routes written in App.js file. functionApp(){return()}Now how do I organize these routes correctly? Since there are about 50 routes and the App.js file contains all 50 routes, I don't think this is a suitable structure.

2023-08-16 16:15:12

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

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Single Responsibility Principle in Javascript

Course Introduction：Understanding the Single Responsibility Principle in JavaScript When writing clean, maintainable code, one of the most important principles to follow is the Single Responsibility Principle (SRP). It’s one of the five SOLID principles in software deve

2024-12-09 comment 0 686

Detailed explanation of the open-closed principle (OCP) of the five object-oriented principles of PHP

Course Introduction：This article mainly introduces the open-closed principle (OCP) of the five object-oriented principles of PHP, and briefly analyzes the concepts, principles, usage methods and related precautions of the open-closed principle (OCP) of PHP. Friends in need can refer to it. Down

2018-04-04 comment 0 1610

Three major principles of ppt design

Course Introduction：Three major principles of ppt design: MagicSeven principle, KISS principle, and 10/20/30 principle. Making PPT is not the same as designing PPT, the design part only accounts for 20%; the only purpose of making PPT is to successfully convey the key points; don't treat PPT as Word, and only show one kind of information to the audience at a time.

2020-01-02 comment 0 11909

SOLID Principles

Course Introduction：SOLID is a collection of fundamental principles designed to enhance the manageability and scalability of code in Object-Oriented Programming (OOP). It consists of five key principles: S ingle Responsibility Principle — SRP O pen-Closed Principle

2024-10-21 comment 0 1004

Five basic principles of object-oriented design in PHP

Course Introduction：S.O.L.I.D is an acronym for the first 5 Object Oriented Design (OOD) principles, S.O.L.I.D means: S - Single Function Principle, O - Opening and Closing Principle, L - Liskov Substitution Principle, I - Interface Isolation Principle, D - Dependencies Reversal principle.

2019-06-12 comment 0 5072

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