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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11270

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 17594

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 11305

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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About tabBar usage in WeChat mini program (detailed tutorial)

Course Introduction：This article mainly introduces the usage of tabBar in WeChat mini program, and analyzes in detail the function, configuration item usage and operation precautions of tabBar in WeChat mini program in the form of examples. It also comes with a complete demo source code for readers to download and refer to. Friends who need it can refer to it. Down

2018-06-22 comment 0 2345

How to use swiper component in WeChat applet

Course Introduction：This article mainly introduces the usage of the swiper component in the WeChat applet, and analyzes the functions and usage of the swiper component in the WeChat applet in the form of examples. It also comes with the complete source code for readers to download and refer to. Friends in need can refer to it.

2018-06-22 comment 0 3645

Teach you how to develop WeChat mini programs as a third-party platform with detailed explanation

Course Introduction：Yesterday, WeChat opened the authorization of third-party platforms for mini programs. So how to develop mini applications as a third-party platform? 1. Overall process When a third-party platform helps its authorized mini-programs with code management, it must first develop the mini-program template and then deploy the mini-program template to its mini-program account. The specific process is as follows: 1: Bind the developed mini-program. Procedure (1) Developers of third-party platforms must first go to the WeChat public platform (mp.weixin.qq.com) to apply for an ordinary mini program, complete the mini program information, and bind the developer. (2) Enter the WeChat open platform,...

2017-04-26 comment 0 8951

Course Introduction：1. Overall process When a third-party platform helps its authorized mini-programs with code management, it must first develop the mini-program template and then deploy the mini-program template to its mini-program account. The specific process is as follows: 1: Bind the development mini-program. Procedure (1) Developers of third-party platforms must first go to the WeChat public platform (mp.weixin.qq.com) to apply for an ordinary mini program, complete the mini program information, and bind the developer. (2) Enter the WeChat open platform and add the mini program as a development mini program in the third-party platform details. Note: After binding as a development applet, the development process of the applet...

2017-06-12 comment 0 2319

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