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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11279

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 17603

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 11314

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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How to use PHP Developer City to implement product classification navigation function

Course Introduction：How to use PHP Developer City to implement product classification navigation function. With the rapid development of e-commerce, more and more people choose to shop online. In order to facilitate users to browse and purchase products, mall websites usually provide product classification navigation functions. When developing a city website, the product classification navigation function can be easily implemented using PHP language. 1. Database design Before starting development, you first need to design the database. The product category navigation function of the mall website requires product category information. Usually, the classification of goods is multi-level, and

2023-06-29 comment 0 1264

How to implement product classification navigation in uniapp

Course Introduction：How to implement product classification navigation in uniapp Introduction: With the rapid development of mobile Internet, e-commerce platforms have become one of the main channels for people to shop. In order to improve user experience and facilitate users to quickly find the products they need, product category navigation has become increasingly important. This article will introduce how to implement product category navigation in uniapp and provide corresponding code examples. 1. Preparation work Before starting, we need to prepare the following work: a uniapp project, which can be created using tools such as HBuilderX. Product points

2023-07-04 comment 0 2406

jQuery floating navigation menu suitable for shopping product type websites_jquery

Course Introduction：The page length is large and it is necessary to quickly and easily locate different positions on the page, so floating menus have gradually become popular. The following is a jQuery floating navigation menu suitable for shopping website product types.

2016-05-16 comment 0 1343

Implementation code for mall home page carousel, product classification navigation and new product special sales developed by WeChat mini program mall

Course Introduction：What this article brings to you is about the implementation code of the mall home page carousel, product classification navigation and new product special sales developed by WeChat mini program mall. It has certain reference value. Friends in need can refer to it. I hope it will be useful to you. Helps.

2018-08-16 comment 0 5969

How to use Xiangtao Card in Tmall Supermarket_Explanation on how to use Xiangtao Card in Tmall Supermarket

Course Introduction：1. The Tmall Supermarket Taobao Card can be used as a discount when placing orders on Taobao APP, Tmall APP and Tmall Supermarket on the computer. It can be used in content stores, various discount areas, Tmall Supermarket with one-hour delivery, and delicious food markets, but not Supports a range of formula infant milk powder and some liquor products. The specific circumstances and/or rules that do not support Maochaoxiang Taoka payment shall prevail. Maochaoxiang Taobao card payment is not supported, including pre-sale product deductions, freight deductions, agency payments and cash on delivery. The actual usage scenarios and/or rules that do not support Maochaoxiang Taobao card payment shall prevail. 3. Use Tmall Supermarket? When shopping with Xiangtao Card, other coupons, red envelopes, etc. may need to be judged according to the actual situation of the event whether they can be used in combination. Please understand that the actual situation at the time of your purchase will prevail. 4. Warm reminder: Xiangtao Card currently supports and

2024-06-04 comment 0 339

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