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Self-study IT network Linux load balancing video tutorial

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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

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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.

Band of Brothers front-end example display video tutorial

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Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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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

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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Teach you step by step how to develop an online auction website using PHP

Course Introduction：Teach you step by step how to develop an online auction website using PHP. In today's digital era, online auction websites have become a popular e-commerce model. If you are interested in developing an online auction website, this article will teach you step by step how to use PHP to implement it. First, you need to clarify your development goals and needs. A complete online auction website usually includes the following functions: user registration and login, product listing and browsing, bidding function, payment and settlement system, etc. Clarifying your needs helps plan the entire development process. Next, you need to choose the right one

2023-10-27 comment 0 580

Teach you step by step to develop your own online second-hand trading platform using PHP

Course Introduction：With the rapid development of the Internet, online second-hand trading platforms have become an important channel for people to conveniently buy and sell second-hand items. How to develop your own online second-hand trading platform has become the focus of many people. This article will teach you step by step how to use PHP language to develop your own online second-hand trading platform. Step One: Requirements Analysis and Function Planning Before developing any software or website, you first need to clarify the purpose and functions of your development. You can consider the following functions: User registration and login: Provide user registration and login functions to facilitate users

2023-10-27 comment 0 791

Teach you step by step how to develop your own online food sharing website using PHP

Course Introduction：With the development of the Internet, more and more people begin to communicate and share various information through the Internet. Among them, food sharing has become a popular activity. In this context, developing an online food sharing website has become the dream of many people. This article will teach you step by step how to use PHP to develop your own online food sharing website. Step One: Plan Website Functionality and Design Before developing any website, you first need to clarify the functionality and design of the website. Food sharing websites generally include the following functions: User registration and login: users can register

2023-10-27 comment 0 1516

Teach you step by step how to develop your own online financial information platform using PHP

Course Introduction：Teach you step by step how to develop your own online financial information platform using PHP. With the development of the Internet and the booming financial industry, online financial information platforms have become a highly sought-after industry. If you have a certain interest in programming and want to develop your own online financial information platform, this article will introduce you in detail how to use PHP for development. Determine Functional Requirements Before developing any type of website or application, you first need to determine your functional requirements. For a financial information platform, you may need the following functions: User registration

2023-10-27 comment 0 934

PHP development skills: How to implement user registration SMS verification function

Course Introduction：PHP development skills: How to implement user registration SMS verification function In the Internet era, user registration has become a common behavior for websites and applications. In order to protect users' account security and prevent malicious registration, many companies have enabled SMS verification functions. Users need to enter their mobile phone number and receive a SMS verification code when registering to confirm their identity and validity. In this article, we will introduce how to use PHP language to implement the user registration SMS verification function and provide specific code examples. Step 1: Prepare the development environment First, make sure you have installed

2023-09-21 comment 0 760

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