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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 11306

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 to implement the page template function of CMS system

Course Introduction：How to use PHP to implement the page template function of a CMS system. With the development of the Internet, content management systems (CMS) play an important role in website development. The CMS system separates the page content from the design style through the template function, making it convenient for website administrators to manage and modify the page. This article will introduce how to use PHP to implement the page template function of the CMS system and provide corresponding code examples. 1. Create a file structure First, we need to create a basic file structure to store the page templates and related files of the CMS system.

2023-08-04 comment 0 798

Common shadow effect design methods in PHP CMS systems

Course Introduction：With the continuous development of the Internet, content management systems (CMS) have become the first choice for many corporate and personal websites. As a mainstream website development language, PHP is also widely popular for the CMS system it develops. Among them, shadow effects have become one of the commonly used technologies by designers and developers. This article will introduce common shadow effect design methods in PHPCMS systems. 1. The meaning of the shadow effect. The shadow effect refers to a virtual three-dimensional effect produced by color gradients or darkening or deepening, which can create a sense of three-dimensionality and depth. exist

2024-03-27 comment 0 774

How to restore color when the phone turns black and white 'Recommended detailed method to change black and white screen to color'

Course Introduction：Excluding the extreme situation of black and white screen due to hardware damage of the phone itself, there are three reasons why the screen of Huawei mobile phone becomes black and white: after the mobile phone turns on the e-book mode, it changes to black and white screen. Turn off this mode to restore the color screen. If the "Full Color Blindness" option is selected for the simulated color space function under developer options, the Huawei phone will have a black and white screen. To solve this problem, you only need to turn off the simulated color space function to restore the color screen. When some special events occur (such as the death of a great man, earthquakes and other major events), the entire network will enter mourning mode. At this time, you only need to wait for the mourning period to pass and the website will return to normal. Implemented based on Huawei P50 and HarmonyOS2.0. How to turn off the e-book mode is introduced on the Huawei mobile phone settings page, click

2024-02-06 comment 0 3437

Improve WordPress theme developer skills and practices to achieve optimal quality

Course Introduction：This article highlights some of the factors you should consider when designing and implementing an actual WordPress theme. These tips are mainly convenient for newbies in WordPress theme development and those who plan to use poreWordPress themes. In the previous article, we covered the two most important steps in designing a WordPress theme (and any other web design theme): Drawing the right inspiration for your theme Providing a good mockup for the design in the prototype application In this article , we will focus more on some of the factors that should be considered when designing and implementing a practical theme. Tools of the Industry Before moving forward, it's important to note that I recommend two tools that may come in handy when designing and coding actual themes. 1. Adobe

2023-09-01 comment 0 1374

HP launches Professor 1 three-mode soft mouse: 4000DPI, Blue Shadow RAW3220, initial price 99 yuan

Course Introduction：According to news from this website on March 31, HP recently launched a Professor1 three-mode Bluetooth mouse on JD.com, available in black and white milk tea colors, with an initial price of 99 yuan, and a deposit of 10 yuan is required. According to reports, this mouse weighs 106 grams, adopts ergonomic design, measures 127.02x79.59x51.15mm, has seven optional 4000DPI levels, is equipped with a Blue Shadow RAW3220 sensor, and uses a 650 mAh battery. It is said that it can be used on a single charge. 2 months. The mouse parameter information attached to this site is as follows:

2024-04-01 comment 0 1415

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