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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11275

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 17601

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 11310

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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Ask the experts for advice: How to set PHPStudy parameters to practice using PHP website template documents and view the results in the browser?

I downloaded a simple php website template from the Internet and want to practice based on this template. After configuring with PHPStudy, I want to see the website effect through the browser. The configuration seems to be unsuccessful. Do you have any experience in this area? What parameters need to be changed to match? I put the website template document under the www folder, and in PHPStudy In "Create Website", select "Create Database" and "Synchronize hosts" under "Create Environment".&

2020-03-22 12:09:49

Warning: Unable to modify header information - header already started sending output at line 12 of /some/file.php at line 23 of /some/file.php

In order to understand why headers must be sent before output, it is necessary to look at a typical HTTP response. The PHP script mainly generates HTML content, but also passes a set of HTTP/CGI headers to the web server. This error occurs when you host your website on a server with a database or PHP site. First, you need access to your host... (The text that follows is truncated and does not provide a full translation).

2023-07-30 11:19:01

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 find PHP function documentation online

Course Introduction：Methods to find PHP function documentation online: 1. The official PHP documentation website provides comprehensive function documentation; 2. Third-party websites, such as PHP.net manual scrambler, PHP function generator and PackagistPHP documentation generator, can provide additional searches and discover functions; 3. Understand the usage and parameters of functions through official documentation, comments, and code examples.

2024-04-12 comment 0 464

How to generate PDF files in PHP

Course Introduction：In this article, we will discuss how to generate PDF files using PHP. We will use the TCPDF library to create PDF documents programmatically. If you are developing a website that allows users to download or print documents such as order receipts, bills, or invoices, you have several options. You can display the document inline in the browser or provide it for download. PDF is one of the best formats when it comes to downloading documents and is excellent at preserving text formatting. So, if you want to learn how to generate PDF files on a PHP website, you've come to the right place! How to install TCPDF library In this section, we will learn how to install TCPDF library. There are multiple ways to install the TCPDF library on the server. The TCPDF library is available at Packagist

2023-08-27 comment 0 2384

How to use PHP to dynamically generate PDF documents

Course Introduction：How to use PHP to dynamically generate PDF documents PDF is a commonly used document format, widely used in e-books, reports, contracts and other scenarios. In website development, sometimes we may need to dynamically generate PDF documents for operations such as generating reports and exporting data. This article will introduce how to use PHP to dynamically generate PDF documents, and provide code examples for reference. 1. Install dependent libraries. Before starting, we need to install TCPDF or FPDF, two commonly used

2023-09-05 comment 0 1287

How to use PHP for PDF generation and manipulation

Course Introduction：How to use PHP for PDF generation and manipulation PDF (PortableDocumentFormat) is a commonly used electronic document format that is usually used for printing and sharing files. In web development, sometimes we need to generate and manipulate PDF files programmatically. PHP is a widely used server-side language with powerful PDF processing capabilities. This article will introduce how to use PHP to generate and manipulate PDF files, and provide some code examples. 1. Generate PDF files using FPDF library

2023-08-03 comment 0 2581

PHP and XML: How to dynamically generate PDF files

Course Introduction：PHP and XML: How to dynamically generate PDF files Overview: PDF files are a cross-platform, printable and editable document format. Using PHP language and XML data, we can realize the function of dynamically generating PDF files, which is very useful for generating and outputting PDF documents containing data on websites. This article will introduce the steps to dynamically generate PDF files using PHP and XML, and provide relevant code examples. Step 1: Install the PDF generation library. To generate PDF files, we need to use the corresponding PD

2023-08-08 comment 0 1496

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