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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11328

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 17632

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

Course Advanced 11338

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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Develop online medical consultation function using PHP and Websocket

Course Introduction：Using PHP and WebSocket to develop online medical consultation functions. With the development of the Internet and the popularity of smart devices, people's demand for online medical consultation is getting higher and higher. In the traditional medical consultation model, patients need to go to the hospital or clinic in person for face-to-face consultation. By using PHP and WebSocket technology, we can realize the function of online medical consultation and provide patients with a more convenient and faster consultation method. WebSocket is a protocol for full-duplex communication over a single TCP connection.

2023-12-02 comment 0 1233

How to implement an online medical consultation system using WebSocket and JavaScript

Course Introduction：How to use WebSocket and JavaScript to implement an online medical consultation system Introduction: With the development of the Internet, people's demand for online medical consultation has gradually increased. The traditional medical system usually requires people to go to the hospital in person and then wait in line to see a doctor, which is time-consuming and inconvenient. The online medical consultation system allows you to contact doctors directly through the Internet, which is convenient and fast, reducing waiting time. This article will introduce how to use WebSocket and JavaScript to implement an online medical consultation

2023-12-18 comment 0 828

How to implement consultation and online doctor in uniapp

Course Introduction：How to implement consultation and online doctors in uniapp With the development of the Internet and the popularity of mobile devices, people's demand for online consultation and consultation continues to increase. In uniapp, we can take advantage of its cross-platform features to quickly develop applications for consultation and online doctors. This article will introduce how to implement consultation and online doctors in uniapp, and provide code examples. 1. Demand analysis Before implementing consultation and online doctors, we first need to conduct demand analysis. According to demand,

2023-10-20 comment 0 2083

How to implement medical consultation and online registration in uniapp

Course Introduction：How to implement medical consultation and online registration in uniapp Introduction: With the development of the Internet, people's demand for medical consultation and online registration is getting higher and higher. This article will introduce how to use the uniapp framework to implement medical consultation and online registration functions, and provide specific code examples. 1. Build the uniapp project First, we need to build a uniapp project. Select the new uniapp project in HBuilderX, select the appropriate template and basic components, and click Create. 2. Create a medical consultation page

2023-10-24 comment 0 1207

How to develop an online medical consultation platform using PHP

Course Introduction：How to use PHP to develop an online medical consultation platform. With the rapid development of the Internet, people are increasingly inclined to obtain medical consultation services online. The online medical consultation platform provides patients with convenient and fast medical consultation channels and solves problems such as queues for medical treatment and traffic congestion. This article will introduce how to use PHP to develop an online medical consultation platform to help developers better implement related functions. System Requirements Analysis Before development, system requirements analysis needs to be performed first. Clarify the platform’s target users, functional requirements, etc. According to demand

2023-10-27 comment 0 617

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