search_绿色叶子logo矢量素材-php.cn

Whole station
Course
Article
Q&A
Download

Self-study IT network Linux load balancing video tutorial

Course Intermediate 11279

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 17603

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 11314

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.

More courses

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

MoreQ&A

How to use AI to create carrot pictures

Course Introduction：Use the curve tool to draw the basic outline of the carrot, the upper arc and the lower tip shape structure. Draw a small leaf at the top of the carrot. Draw some wrinkles on the surface of the carrot and use curves to represent them. Fill the small leaves of the carrot with a green gradient, and add a dark green stroke to the root. Fill the main body of the carrot with an orange-yellow gradient. You can adjust the angle of the gradient and the amount of orange in it to create a realistic surface material. Use yellow to outline the curves on the surface of the carrot, and the composite form is a color filter, thus completing the creation of the carrot picture.

2024-04-23 comment 0 1061

LG Display has successfully developed a blue phosphorescent OLED panel and plans to conduct mass production performance evaluation within this year

Course Introduction：According to news from this website on August 22, ETNews quoted industry insiders as saying that LG Display has successfully developed an OLED panel that uses blue phosphorescence, thereby greatly improving OLED energy efficiency, thereby reducing power consumption, extending battery life, and improving brightness, further providing OLED with a Development has laid an important foundation. Note from this site: OLED panel organic substances can be divided into "phosphorescent" and "fluorescent" according to their light-emitting methods. Phosphorescent materials can theoretically achieve nearly 100% exciton energy conversion rate, while fluorescent materials can only achieve 25%. To put it simply, OLED products currently on the market have successfully applied phosphorescence to red and green pixels among the three primary colors. However, the development of phosphorescent materials for the blue part is difficult due to lifespan and color accuracy issues (blue wavelength is short,

2024-08-23 comment 0 1147

How to create a tree bark mobile phone background effect in Photoshop_Photoshop tutorial to create a tree bark mobile phone background effect

Course Introduction：1. Open the original image material, then open the tree bark shown in the picture below, drag the bark in, change the angle appropriately, and cover the hand of the original picture as shown in Figure 22. Use the pen tool to outline the path of the hand, and then return to The bark layer is added with a layer mask as shown below. 3. Then change the blending mode of the bark layer to [Multiply], and use a black brush to slightly overpaint the corners. 4. Find a picture of coffee beans and copy a part of it onto the cup as shown below. 5. Just like the hand processing, add bark texture to the cup. After adding the texture, you need to use the burn/dodge tool to adjust the light. Some rough areas can be slightly softened with the blur tool. The process is shown in Figure 6. Treat the mobile phone in the same way, the process is shown in Figure 12-17. 7. Finally add some green vines and leaves for decoration

2024-06-10 comment 0 1202

How to install win7 operating system on computer

Course Introduction：Among computer operating systems, WIN7 system is a very classic computer operating system, so how to install win7 system? The editor below will introduce in detail how to install the win7 system on your computer. 1. First download the Xiaoyu system and reinstall the system software on your desktop computer. 2. Select the win7 system and click "Install this system". 3. Then start downloading the image of the win7 system. 4. After downloading, deploy the environment, and then click Restart Now after completion. 5. After restarting the computer, the Windows Manager page will appear. We choose the second one. 6. Return to the computer pe interface to continue the installation. 7. After completion, restart the computer. 8. Finally come to the desktop and the system installation is completed. One-click installation of win7 system

2023-07-16 comment 0 1175

php-insertion sort

Course Introduction：:This article mainly introduces php-insertion sort. Students who are interested in PHP tutorials can refer to it.

2016-08-08 comment 0 1031

MoreTechnical Articles