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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11367

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 17675

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 11383

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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Questions about dates growing periodically and inserted into the database

//Get a (string character time), b (number of times) from the form. $b=$_POST['b']; //Number of times $a = $_POST['a']; //Date$d = strtotime($a); //Convert string time to timestamp. //The database is simple in design, automatically growing the three fields id, a, and b. The connection code is omitted. for($i = 0;

2019-05-04 16:07:40

The rewritten title is: Using PHP buttons combined with jQuery and POST methods to get return values

I have a simple form to get usernames and would like to achieve the following: When the user clicks on a button, the button will be disabled to prevent multiple clicks (in real cases it may take a few seconds to process all the data, e.g. calling an API , write to database, etc.); after clicking, a new POST request needs to occur in order to capture $_POST['username'] in PHP and process the request further. How to achieve this goal? The code is as follows, but it doesn't work as expected: <?phpsession_start(); // Process the form data when the form is submitted i

2023-09-05 08:42:27

Demonstrating SQL Virtual/Temporary Table Approach: Extracting Data from an Associative Array

I need a simple SQL query to display a virtual/temporary table without creating it in the database. I'm using PHP to create a query string with data. My current PHP code is: $array=[['id'=>1,'name'=>'one'],['id'=>2,'name'=>'two'],['id '=>3,'name'=>'three']];$subQuery="SELECT{$array[

2023-09-03 16:26:28

PHP code to convert numbers (0-23) to AM/PM time format

I have an array of numbers ranging from 0 to 23, each number represents a time from midnight to 11pm. It sorts by the key's value in descending order. 22=>int83=>int75=>int6 and so on. For example, if the key of the first element of the array is 22, I want the variable $first to be "10PM". Of course, I could write: if(key($array)=='22'){$first='10PM';} but I would have to do it 23 times for each key... Is there an easier way?

2023-12-24 19:03:07

Change input quantity step value of simple product based on weight in WooCommerce

I want the quantity selector value to change based on the weight we set in Shipping > Product Weight for a simple product. As shown in the image below, when we set the weight of the product to 0.5 kg, the product quantity selector starts from 0.5 and if we set it to 1 kg, it starts from 1. Finally when we set the weight to each number, the quantity selector should fire based on the weight number we defined. I modified the code but it doesn't work for values less than 1. /*QuantitySelectorBasedOnSimple*/functioncu

2023-09-04 21:55:45

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How to implement a simple clock function using MySQL and Ruby

Course Introduction：How to use MySQL and Ruby to implement a simple clock function. The clock function is often used in various applications. It can help us record time, timing, timing, etc. In this article, we will introduce how to use MySQL and Ruby to implement a simple clock function, and provide corresponding code examples. First, we need to create a database table to store clock-related data. In MySQL, you can create a table named clocks using the following command: CREATETABLE

2023-09-21 comment 0 1317

Station B measures 'playing minutes' in a small area, UP owners can see the playing time index

Course Introduction：According to news from this site on August 23, according to Jiemian News, Station B has launched an internal test of the playback duration function today, but it is currently only open to some UP owners. According to reports, UP owners participating in the internal test can see the "playing time index" indicator of the manuscript, but this indicator is currently only displayed in the background of the UP main creative center, and the client has not yet been launched. Insiders explained that the "broadcasting time index" refers to the total number of minutes a manuscript has been played, but it is called an "index" because it involves a lot of subtle calculation details. After all, this number cannot be presented by a simple cumulative total time. On June 26, Chen Rui, chairman and CEO of Bilibili, gave a speech at the 14th anniversary live broadcast of Bilibili. Chen Rui said that the number of playback minutes can better reflect the quality of the video than the number of plays, but counting the number of playback minutes

2023-08-24 comment 0 1479

PHP form encoding and character set settings

Course Introduction：PHP form encoding and character set settings When developing web applications, processing form data is a common task. In order to ensure the correctness and completeness of the data, we need to set the form encoding and character set correctly. This article will introduce how to set the form encoding and character set in PHP and provide some code examples. Form encoding The form encoding determines the character encoding used by the browser when sending form data to the server. Normally, we should use UTF-8 encoding to process form data, because UTF-8 supports various international

2023-08-07 comment 0 1536

PHP Tip: One line of code to convert numbers to Chinese uppercase

Course Introduction：PHP Tips: One Line of Code to Convert Numbers to Chinese Uppercase When developing PHP programs, sometimes you need to convert numbers to Chinese uppercase, for example, convert 12345 to "twelve thousand three hundred and forty-five". Below we will introduce a simple and practical way to implement this function in one line of code. //Convert numbers to Chinese uppercase functionnum2chinese($num){$array=array('zero','one','two','three','four',

2024-03-26 comment 0 591

Tips and Notes: Different String Array Assignment Methods

Course Introduction：Introduction to tips and precautions for using different ways to assign values to string arrays: In programming, it is often necessary to use arrays to store a set of related data. Especially when dealing with strings, it is often necessary to use string arrays to store multiple strings. This article will introduce some common methods, tips and precautions for assigning values to string arrays, and provide code examples. Direct assignment Direct assignment is the simplest way. You can directly assign values to the array elements while declaring the string array. The sample code is as follows: String[]fruit

2023-12-26 comment 0 1291

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