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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11273

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 17597

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 11309

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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where is the problem? This simple html/PHP form works fine when tested locally but fails on the live server

I want to add a "Send Message" form to an existing website. I found this tutorial: PHP Contact Form I reviewed the code from the tutorial, learned how it works, and then programmed it. I got it running and tested it all on my PC and it works perfectly. I then put it on the server as part of an existing website. but failed. Clicking the submit button clears the screen and the form disappears. No error message. Nothing at all. Both XAMPP and the actual server are running PHP version 8.1.12. It fails on this line of PHP code

2023-09-05 17:03:39

HTML table repeats content on every submit click

My program takes a .csv file, reads information from it and sends it to an HTML table in js. Additionally, I have input fields for future actions. It can search the entire table for data by the entered filter. The problem is that if the form is already generated and I click submit again, my form appears again and a copy is created (as shown in the picture) The problem is how to make it not copy on submit.html: <!DOCTYPEhtml><htmllang ="en"><head&g

2024-02-21 18:09:04

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

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How to create a responsive modal box using HTML, CSS and jQuery

Course Introduction：How to use HTML, CSS and jQuery to create a responsive modal box. In modern web design, the modal box (Modal) is a common interactive element that can be used to display additional content, forms or prompt information. The modal box can pop up after the user clicks a button or link, covering the current page and darkening the background content to focus the user's attention. This article will introduce how to use HTML, CSS and jQuery to create a responsive modal box, allowing you to use it flexibly in web pages.

2023-10-27 comment 0 1229

How to use PHP to implement the verification code function of CMS system

Course Introduction：How to use PHP to implement the verification code function of the CMS system. With the development of the website and the increase in user interaction, in order to ensure the security of the website, it is often necessary to add the verification code function in operations such as user registration, login and form submission. This article will introduce how to use PHP to implement the verification code function of the CMS system to protect the website from robots and malicious attacks. 1. Generate verification code First, we need to generate a verification code image. PHP provides a GD library that can be used to generate pictures and draw text, interference lines and other effects on the pictures. The following is raw

2023-08-04 comment 0 1456

How to use PHP arrays to implement verification code generation and verification functions

Course Introduction：A method to implement captcha generation and verification functions using PHP arrays Captcha (CAPTCHA) is a technology used to verify whether the user is a human and not a machine. In operations such as website registration, login or form submission, verification codes can effectively prevent automated attacks by malicious programs. In this article, we will introduce how to use PHP arrays to generate and verify verification codes. 1. Generate verification code We can first define an array containing all possible verification code characters, and then generate a random verification code of specified length as needed. by

2023-07-15 comment 0 939

How to turn off the intelligent body of Wen Xinyiyan How to turn off the intelligent body

Course Introduction：When you choose to turn off Wen Xinyiyan's agent, it is like temporarily pressing the mute button in an active communication scene. This decision may be due to a variety of reasons, such as your wish to temporarily stop receiving the information and answers provided by it, or due to considerations of information control and privacy protection in specific situations. How to close the smart body 1. Open the Wenxin Yiyan app homepage and click the "Portrait" icon in the upper right corner. 2. Go to your personal homepage and click the "Agent" option. 3. Enter the agent list and long press the agent you want to delete. 4. In the pop-up menu, select the "Delete" option. 5. Click the "Delete" button to delete the agent.

2024-07-12 comment 0 479

Can THG coins still be invested? Is it possible for THG currency to rise sharply?

Course Introduction：The field of blockchain games is getting more and more attention. ThetanArena is one of the most popular games on the blockchain. It is the first MOBA format based on blockchain and aims to create a game ecosystem that is perfectly integrated with blockchain technology. . The THG coin is the native token of the ThetanArena game and has the functions of medium of exchange, value storage, staking and voting. After briefly introducing the basic information of THG Coin, I still cannot analyze THG Coin. Can I still invest in THG Coin? According to the current data, it is not recommended to invest in THG currency. It is not recommended at the moment, but it does not represent the future. So is it possible that THG currency will rise sharply in the future? At present, a big rise is unlikely. The editor below will tell you in detail. THG coins can also be invested

2024-04-14 comment 0 350

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