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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11382

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 17695

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 11394

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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Fix PHP image upload issue: replace previous image to upload new image in multiple posts

I'm running into an issue with the image upload functionality of my PHP application. Here's the situation: I have a form where the user can create a post and upload an image related to the post. When I upload my first post with an image attached, everything works fine and the image is saved correctly to the server under a folder called Uploads and saved under a name (for example, post1_image.jpg). However, when I try to upload a second post with a different image with the same name as the first image (for example, post1_image.jpg), the question

2023-09-14 11:27:48

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

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PHP implements image uploading and cutting functions. PHP image upload class. PHP mobile phone uploads images. PHP mobile phone uploads images.

Course Introduction：Image upload, php: php implements image upload and cutting functions: The example in this article introduces the specific code of php to implement image uploading and cutting functions in detail for your reference. The specific content is as follows lo

2016-07-29 comment 0 1340

PHP implements image upload and cropping functions

Course Introduction：As a commonly used back-end programming language, PHP is widely used in the field of website development. Among them, image uploading and cropping are one of the commonly used functions in website development. The following will introduce how to use PHP to implement image upload and cropping functions. 1. Image upload function First introduces the implementation of the image upload function. The following code implements a simple image upload function:<html><head><metacharset=&q

2023-06-23 comment 0 1787

WeChat applet implements image cropping and uploading functions

Course Introduction：WeChat Mini Program implements image cropping and uploading functions. With the rapid development of WeChat Mini Program, more and more developers have begun to pay attention to the development skills and function implementation of WeChat Mini Program. Among them, the image cropping and uploading function is a common requirement. This article will introduce how to implement the image cropping and uploading function in the WeChat applet and provide specific code examples. 1. Functional requirements analysis In the WeChat applet, the function of cropping and uploading images can be divided into the following steps: the user selects an image and uploads the selected image and performs the cropping operation.

2023-11-21 comment 0 1579

Implementation of image cropping and uploading function

Course Introduction：This time I will bring you the implementation of the image cropping and uploading function. What are the precautions for implementing the image cropping and uploading function? The following is a practical case, let’s take a look.

2018-03-17 comment 0 1925

PHP development: How to implement image upload and cropping functions

Course Introduction：PHP development: How to implement image uploading and cropping functions, specific code examples are required Introduction: In the process of web development, image uploading and cropping functions are very common requirements. This article will introduce how to implement image upload and cropping functions through PHP development, and provide specific code examples. 1. Implementation of the picture upload function: The picture upload function is one of the common functions on the website. Users can upload pictures to display personal images, product pictures, etc. The following are the steps to implement a simple image upload function: create an HTML form and use

2023-09-21 comment 0 1003

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