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Articles on Trending Technologies
Technical articles with clear explanations and examples
PHP Program to Check if all rows of a matrix are circular rotations of each other
A rectangular array called a matrix is made up of rows and columns. And circular rotations entail rotating the array's elements so that after one rotation, the last member is in the first position and the other elements are shifted to the right. We are given an N*N matrix in this problem, and our objective is to determine whether all of the rows are circular rotations of one another. If they are, print "YES, " otherwise print "NO." In order to better understand the issue, let's look at some cases with explanations below. Input 1 mat ...
Read MoreHow to Upload Image into Database and Display it using PHP
In modern web applications, it is common to store images in databases for various reasons, such as security, easy management, and scalability. PHP provides an easy way to upload images to databases and display them on web pages. In this article, we will learn how to upload images into database and display them using PHP. We will implement the following functionality − HTML form to upload an image Upload an image to the server using PHP Store file data in the database using PHP and MySQL Retrieve images from the database and display on the web page ...
Read MoreOnline Group Chat application Using PHP
A web-based online group chat application enables users to communicate in real-time through text messaging. This tutorial demonstrates how to build a complete group chat application using PHP, MySQL, and Bootstrap for a modern interface. Prerequisites Installation Requirements: XAMPP or WAMP server with PHP support MySQL database Web browser for testing Step 1: Database Setup First, create the database and table structure for storing chat messages − CREATE DATABASE onlinechatapp DEFAULT CHARACTER SET utf8; GRANT ALL ON onlinechatapp.* TO 'admin'@'localhost' IDENTIFIED BY 'admin'; USE onlinechatapp; CREATE TABLE ...
Read MoreHow to Increase File Upload Size in PHP
In today's digital world, file uploads are a common occurrence, be it uploading pictures to social media platforms or sharing documents through email. However, PHP's default file upload size limit can cause inconvenience to users, restricting them from uploading files of larger sizes. In this article, we will explore ways to increase the file upload size in PHP. Understanding PHP File Upload Size Limit PHP is a server-side scripting language that is widely used for developing dynamic web pages. When a user uploads a file to a PHP-based website, the file size limit is imposed by the PHP ...
Read MoreSimple Contact Form using HTML CSS and PHP
A contact form is a great way to allow users to reach out to you directly through your website. Contact forms are a crucial aspect of any website, as they allow visitors to get in touch with the website owner. A contact form on website provides an easy way for visitors to ask questions, make inquiries, or provide feedback. In this tutorial, we will be discussing how to create a simple contact form using HTML, CSS, and PHP. Step 1: Create the HTML Form The first step in creating a contact form is to create its structure ...
Read MoreDifference Between Golang and PHP
Both Golang and PHP are popular programming languages used for web development. Although both languages are suitable for building web applications, they have significant differences in terms of their syntax, performance, and popularity. In this article, we will discuss the key differences between Golang and PHP in detail and compare them in a tabular form. Golang vs PHP Here are the main differences between Golang and PHP − Category Golang PHP Syntax Golang has a strict syntax with mandatory semicolons and braces PHP has a flexible syntax with optional semicolons and braces ...
Read MorePHP program to Count Inversions of size three in a given array
Inversion count is a measure that determines how far an array is from being sorted. For inversions of size three, we look for triplets (i, j, k) where a[i] > a[j] > a[k] and i < j < k. This helps analyze the sorting complexity of an array. Array: {5, 4, 3, 2, 1} // reverse order Triplets: (5, 4, 3), (5, 4, 2), (5, 4, 1), (5, 3, 2), (5, 3, 1), (5, 2, 1), (4, 3, 2), (4, 3, 1), (4, 2, 1), (3, 2, 1) Output: 10 Array: {1, 2, 3, 4, 5} ...
Read MoreShould I Learn Python or PHP for the Back End?
Choosing between Python and PHP for backend development is one of the most common decisions new developers face. Both languages have established themselves as powerful tools for server-side programming, but they serve different purposes and excel in different areas. PHP was specifically designed for web development and has powered millions of websites since the 1990s. Python, originally created for general-purpose programming, has gained significant traction in web development while maintaining its dominance in data science and machine learning. Understanding their key differences will help you make an informed decision based on your career goals and project requirements. ...
Read MorePDF generation from XHTML in a LAMP environment
The LAMP environment is widely used for web development, and it is an acronym for Linux, Apache, MySQL, and PHP. This environment is an open-source platform that is easy to use and deploy. PDF format is commonly used for sharing and exchanging documents over internet. However, generating PDF documents can be a challenging task in a LAMP environment, especially when converting XHTML documents. In this article, we will explore different methods used for PDF generation from XHTML in a LAMP environment. What is XHTML? XHTML stands for Extensible Hypertext Markup Language, which is a markup language that is ...
Read MorePHP and Xvfb usage
Xvfb (X Virtual Frame Buffer) creates a virtual display in memory without requiring physical display hardware. This allows running graphical applications in a headless environment. When combined with PHP, Xvfb enables server−side execution of GUI applications through PHP scripts. Why Use Xvfb with PHP? PHP typically handles server−side logic without direct graphics support. However, certain scenarios require running graphical applications on servers − Automated testing of GUI applications Browser automation for web scraping Image/video processing with graphical tools Running desktop applications headlessly Installation Ubuntu/Debian: sudo apt-get update sudo apt-get install xvfb ...
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