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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11324

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 17630

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 11334

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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jQuery realizes big carousel lottery activity imitating QQ music code sharing_jquery

Course Introduction：This article mainly shows the jQuery implementation code of the big carousel lottery imitating QQ music. Friends who need it can refer to it.

2016-05-16 comment 0 1378

How to implement the php lucky wheel code

Course Introduction：How to implement the php lucky wheel: 1. Create a PHP sample file; 2. Implement the big wheel lottery algorithm through the code "function get_gift(){...}".

2021-12-14 comment 0 3299

H5PHP application: Create a unique big wheel lottery event

Course Introduction：The Big Roulette Lottery has always been an effective way to attract users to participate. Through a highly interactive and interesting lottery form, more users can be attracted to participate and the participation and dissemination of the event can be improved. In today's Internet era, with the help of H5 technology and PHP language, we can easily create a unique big carousel lottery event. Next, we will introduce how to use H5 and PHP to build a big carousel lottery event, and give specific code examples. 1. Preparation work Before starting to build the big carousel lottery event, we first need to accurately

2024-03-04 comment 0 427

How to use Vue to implement lottery wheel special effects

Course Introduction：How to use Vue to implement lottery wheel special effects. As a popular marketing tool, lottery activities often appear in various activities. In order to increase fun and interactivity, we can use the Vue framework to implement a lottery wheel special effect. This article will introduce how to use Vue to achieve this special effect and give specific code examples. First, we need to create a Vue instance to control the status and animation of the turntable. In this example, we need to define the initial state of the wheel, including the prize list, whether the wheel is rotating,

2023-09-19 comment 0 1239

Play with H5PHP: Create an innovative big wheel lottery experience

Course Introduction：Title: Play with H5PHP: Create an innovative big wheel lottery experience In the current digital era, the continuous development and innovation of Internet technology have made lottery activities more convenient, interesting and attractive. Among them, the use of H5 technology combined with PHP programming to create large carousel lottery activities is adopted by more and more websites and applications. This article will introduce how to use H5 and PHP languages to implement an innovative big wheel lottery experience, and provide specific code examples. 1. Preparation Before starting, we need to prepare the following work: a Web server

2024-03-04 comment 0 753

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