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How do you parse and process HTML/XML in PHP?

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

Feb 07, 2025 am 11:57 AM

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How to get selected option value in PHP

This article demonstrates how to retrieve selected option values from HTML forms using PHP. We'll cover single and multiple selection scenarios with illustrative examples. What are "option values" in PHP? In the context of PHP and HTML for

Feb 07, 2025 am 11:33 AM

PHP

PHP program to find the perimeter of rectangle

Problem description Given the length and width of the rectangle, we need to implement a PHP program to calculate its perimeter. A rectangle is an enclosed two-dimensional figure with 4 sides. The opposite sides are equal and parallel, and the angle formed by adjacent sides is equal to 90 degrees. The perimeter is the sum of all sides; in other words, the perimeter is twice the sum of length and width. In this tutorial, we will learn how to find the perimeter of a given rectangle in PHP using different methods. Rectangle perimeter formula The formula for the circumference of the rectangle is as follows: $${perimeter = 2 × (length and width)}$$ in: Long - horizontal distance. Width - Vertical distance. Example Let's understand the problem description with some input and output examples. enter Length = 10 units Width = 5 units

Feb 07, 2025 am 11:30 AM

PHP

PHP Program to Check if a Number is an Armstrong Number

Armstrong Number The Armstrong number refers to the sum of n powers of each digit of a number equal to the number itself, where n is the number of digits of the number. This article will discuss how to check if a given number is an Armstrong number. Example Let's learn about the Armstrong number with some input and output examples. enter 9474 Output yes explain This is a four-digit number. The numbers for this number are 9, 4, 7 and 4. 9474 = 94 44 74 44= 6561 256 2401 256= 9474 So, this is an Armstrong number. enter 153 Output yes explain This is a triple digit number. The numbers for this number are 1, 5 and 3

Feb 07, 2025 am 11:27 AM

PHP

PHP Program for Binary to Decimal Conversion

Binary to decimal conversion refers to the process of converting a binary number (i.e., a number represented by only two digits 0 and 1) to its equivalent decimal number (i.e., in the form of 10 as a base). This article will explain how to convert the binary form of a number to a decimal form in PHP using different methods. How to convert binary to decimal? Binary numbers (binary) are composed only of 0 and 1 bits used by machines, and decimal numbers are decimal numbers used by humans. To convert a binary number to a decimal number, multiply each binary number by its position power (starting from 0 on the right), and add all the results. Example 1 Input: Binary number = 101 Output: decimal

Feb 07, 2025 am 11:21 AM

PHP

How to Add Elements to the End of an Array in PHP

Arrays are linear data structures used to process data in programming. Sometimes when we are processing arrays we need to add new elements to the existing array. In this article, we will discuss several ways to add elements to the end of an array in PHP, with code examples, output, and time and space complexity analysis for each method. Here are the different ways to add elements to an array: Use square brackets [] In PHP, the way to add elements to the end of an array is to use square brackets []. This syntax only works in cases where we want to add only a single element. The following is the syntax: $array[] = value; Example

Feb 07, 2025 am 11:17 AM

PHP

How to Check If Two Arrays are Equal in PHP?

PHP array equality check method In PHP, determining whether the two arrays are equal means that the array elements are the same, the order is the same, and even the data types match. This article will introduce several methods to check array equality in PHP: Violence Law This method first sorts the two arrays and then compares them using the == operator. Sort to ensure that the order of elements does not affect the comparison results. Example:

Feb 07, 2025 am 11:15 AM

PHP

How to Install phpMyAdmin with Nginx on Ubuntu?

This tutorial guides you through installing and configuring Nginx and phpMyAdmin on an Ubuntu system, potentially alongside an existing Apache server. We'll cover setting up Nginx, resolving potential port conflicts with Apache, installing MariaDB (

Feb 07, 2025 am 11:12 AM

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PHP Program to Print Multiplication Table

Multiplication tables are fundamental mathematical tools used to display the products of a number multiplied by a range of values, typically from 1 to 10. This article explores several PHP methods for generating and displaying these tables. The core

Feb 07, 2025 am 11:10 AM

PHP

Maximizing the application - PHP

When we are programming, regardless of language, there are concepts and techniques that we can adopt to improve both code readability and understanding and application performance. The greatest learning here is: don't try Reinven

Jan 30, 2025 pm 12:03 PM

Divide Nodes Into the Maximum Number of Groups

2493. Divide Nodes Into the Maximum Number of Groups Difficulty: Hard Topics: Breadth-First Search, Union Find, Graph You are given a positive integer n representing the number of nodes in an undirected graph. The nodes are labeled from 1 to n. Y

Jan 30, 2025 am 10:03 AM

. Redundant Connection

684. Redundant Connection Difficulty: Medium Topics: Depth-First Search, Breadth-First Search, Union Find, Graph In this problem, a tree is an undirected graph that is connected and has no cycles. You are given a graph that started as a tree with

Jan 30, 2025 am 08:04 AM

Laravel Performance Tuning: Optimizing Database Queries for Scalability

In the Laravel project, as the traffic increases, it is not uncommon for database to query speed. Recently, when I optimized the back end of a real estate platform, I encountered this problem and learned some lessons from it. Database optimization is one of the key areas for developing scalable and high -performance applications. It can improve the data retrieval speed, shorten the response time and page loading time, and reduce the server load, and minimize the cost. The challenge of the real estate platform Imagine: You build an excellent real estate platform that serves multiple cities and is equipped with advanced search filters. The real estate list loads fast, the search filter responds rapidly, and everything looks perfect. However, with the expansion of the application and the user base

Jan 30, 2025 am 06:04 AM

php: writing command-line applications with macrame. pt 1

PHP is not widely watched by command line script language, but this is a pity, because PHP has many ideals that make it ideal to write terminal applications. This series of articles will introduce how to use the Macrame library to write an interactive command script. We will gradually complete a sample item. The script obtains the list of Mastodon user followers from beginning to end, and covers the following topics: obtain and verify user input, build interactive menu, handle command line parameters, security access files, set output text styles, and Run the function in the background when the animation loader is displayed to the user. For more information about Macrame, visit the document site. Example items The project we will complete is a simple

Jan 30, 2025 am 04:07 AM