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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11357

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 17659

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 11374

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 read the class sample code of mobile client browser in php

Course Introduction：This article mainly introduces the PHP class that implements reading mobile client browsers. It can achieve functions such as obtaining mobile phone numbers, browser header information, obtaining mobile phone types, obtaining mobile phone IPs, etc. Friends who need it can refer to the following

2017-07-05 comment 0 1187

PHP class library to obtain client IP, geographical information, browser, and real IP

Course Introduction：This article mainly introduces the PHP class library for obtaining client IP, geographical information, browser, and real IP. It has certain reference value. Now I share it with you. Friends in need can refer to it.

2018-04-23 comment 0 1463

PHP code to obtain the client IP address, geographical information, browser information, and local real IP

Course Introduction：PHP code to obtain the client IP address, geographical information, browser information, and local real IP

2016-07-25 comment 0 945

How Can I Access Client Machine Name in Web Browsers?

Course Introduction：Client Machine/Computer Name Retrieval in BrowsersReading a client's machine or computer name from a web browser is a useful feature for various...

2024-10-26 comment 0 271

How to obtain client browser and operating system information in php

Course Introduction：Published: sunday01 Source: net Read: 2 [Large, Medium, Small] In a more intelligent program, PHP can obtain the client browser and operating system information, and then load different pages according to the browser and system type to provide more personalized services. Let's learn how to use php to obtain client browser and operating system information. Friends who are interested can refer to it. 1. The field ['HTTP_USER_AGENT'] in the PHP super global variable $_SERVER array obtains the access user's...

2016-11-22 comment 0 1736

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