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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11386

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 17699

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 11397

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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User feedback collection and processing process for developing real-time chat system in PHP

Course Introduction：User feedback collection and processing process for developing real-time chat system in PHP With the popularity of the Internet, real-time chat system has become one of the important ways for people to communicate. It is very important for developers to understand and respond to user feedback in a timely manner to help them improve the system and provide a better user experience. This article will introduce how to use PHP to develop the user feedback collection and processing process of a real-time chat system, and provide corresponding code examples. Feedback collection on the front-end page Add a feedback form to the front-end page of the real-time chat system where users can

2023-08-25 comment 0 624

Create a contact form in WordPress using a free plugin

Course Introduction：Today, we will discuss the FormidableForms plugin for WordPress, which allows you to create different types of forms easily. Specifically, we’ll look at how to use this plugin to build a contact form for your website. We will first explore the basic settings provided by this plugin, and then we will go through a practical example of building a contact form using this plugin. As a website owner, you may want to get feedback from your users and customers about your services, which will help you serve them better. Therefore, a contact form on your website is one of the must-have features to collect user feedback. If you are a WordPress developer or your hobby is building websites using WordPress, you already know WordPress

2023-09-16 comment 0 1225

The PHP form processing revolution: changing the way websites interact

Course Introduction：PHP form processing has always been an integral part of website development, but in recent years it has undergone a complete transformation, changing the way websites interact. These changes include: The popularity of Ajax and JSON The emergence of ajax (asynchronous javascript and XML) and JSON (JavaScript Object Notation), which allows forms to be submitted asynchronously without reloading the entire page. This greatly improves the user experience as users can receive immediate feedback on form submissions without having to wait for the page to reload. Front-End Validation and Responsive Design Modern PHP frameworks and form libraries, such as Laravel and Bootstrap, provide extensive form validation capabilities. These features allow developers to

2024-03-17 comment 0 1156

Developing a web voting application using JavaScript

Course Introduction：Using JavaScript to develop web voting applications With the development of the Internet, online voting has become a common way to collect user opinions and feedback. In order to facilitate users to participate in voting activities, it is very necessary to develop a simple web voting application. This article will introduce how to use JavaScript to develop a web voting application, and attach corresponding code examples. Preparation work First, we need to add a voting area and some option buttons to the web page, where users can choose their favorite options.

2023-08-10 comment 0 1188

How to achieve data synchronization and synchronization after PHP form submission

Course Introduction：Title: How to implement data synchronization and asynchronousness after PHP form submission Introduction: In the development of modern websites, forms are one of the important ways for users to interact with the website. After users fill out the form, they usually need to submit the data to the server for processing, and then make corresponding feedback based on the processing results. This article will introduce how to use PHP to implement synchronous and asynchronous submission of form data, and provide corresponding code examples. 1. Implementation of data synchronization In the HTML page, create a form to be submitted, for example: <formacti

2023-08-11 comment 0 1380

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