#Php arithmetic operators

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Learn PHP Math Functions with Examples – Complete Guide

Master PHP Math with this complete guide. Learn basic arithmetic, rounding, trigonometry, and random number generation with examples and explanations. 🧮 PHP Math: A Complete Guide to Mathematical Functions in PHP Mathematics is the foundation of programming logic—and PHP provides a robust set of math functions that make it easy to perform calculations, handle complex numbers, and solve…

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25 Udemy Paid Courses for Free with Certification (Only for Limited Time)

2023 Complete SQL Bootcamp from Zero to Hero in SQL

Become an expert in SQL by learning through concept & Hands-on coding :)

What you'll learn

Use SQL to query a database Be comfortable putting SQL on their resume Replicate real-world situations and query reports Use SQL to perform data analysis Learn to perform GROUP BY statements Model real-world data and generate reports using SQL Learn Oracle SQL by Professionally Designed Content Step by Step! Solve any SQL-related Problems by Yourself Creating Analytical Solutions! Write, Read and Analyze Any SQL Queries Easily and Learn How to Play with Data! Become a Job-Ready SQL Developer by Learning All the Skills You will Need! Write complex SQL statements to query the database and gain critical insight on data Transition from the Very Basics to a Point Where You can Effortlessly Work with Large SQL Queries Learn Advanced Querying Techniques Understand the difference between the INNER JOIN, LEFT/RIGHT OUTER JOIN, and FULL OUTER JOIN Complete SQL statements that use aggregate functions Using joins, return columns from multiple tables in the same query

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Python Programming Complete Beginners Course Bootcamp 2023

2023 Complete Python Bootcamp || Python Beginners to advanced || Python Master Class || Mega Course

What you'll learn

Basics in Python programming Control structures, Containers, Functions & Modules OOPS in Python How python is used in the Space Sciences Working with lists in python Working with strings in python Application of Python in Mars Rovers sent by NASA

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Learn PHP and MySQL for Web Application and Web Development

Unlock the Power of PHP and MySQL: Level Up Your Web Development Skills Today

What you'll learn

Use of PHP Function Use of PHP Variables Use of MySql Use of Database

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T-Shirt Design for Beginner to Advanced with Adobe Photoshop

Unleash Your Creativity: Master T-Shirt Design from Beginner to Advanced with Adobe Photoshop

What you'll learn

Function of Adobe Photoshop Tools of Adobe Photoshop T-Shirt Design Fundamentals T-Shirt Design Projects

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Complete Data Science BootCamp

Learn about Data Science, Machine Learning and Deep Learning and build 5 different projects.

What you'll learn

Learn about Libraries like Pandas and Numpy which are heavily used in Data Science. Build Impactful visualizations and charts using Matplotlib and Seaborn. Learn about Machine Learning LifeCycle and different ML algorithms and their implementation in sklearn. Learn about Deep Learning and Neural Networks with TensorFlow and Keras Build 5 complete projects based on the concepts covered in the course.

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Essentials User Experience Design Adobe XD UI UX Design

Learn UI Design, User Interface, User Experience design, UX design & Web Design

What you'll learn

How to become a UX designer Become a UI designer Full website design All the techniques used by UX professionals

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Build a Custom E-Commerce Site in React + JavaScript Basics

Build a Fully Customized E-Commerce Site with Product Categories, Shopping Cart, and Checkout Page in React.

What you'll learn

Introduction to the Document Object Model (DOM) The Foundations of JavaScript JavaScript Arithmetic Operations Working with Arrays, Functions, and Loops in JavaScript JavaScript Variables, Events, and Objects JavaScript Hands-On - Build a Photo Gallery and Background Color Changer Foundations of React How to Scaffold an Existing React Project Introduction to JSON Server Styling an E-Commerce Store in React and Building out the Shop Categories Introduction to Fetch API and React Router The concept of "Context" in React Building a Search Feature in React Validating Forms in React

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Complete Bootstrap & React Bootcamp with Hands-On Projects

Learn to Build Responsive, Interactive Web Apps using Bootstrap and React.

What you'll learn

Learn the Bootstrap Grid System Learn to work with Bootstrap Three Column Layouts Learn to Build Bootstrap Navigation Components Learn to Style Images using Bootstrap Build Advanced, Responsive Menus using Bootstrap Build Stunning Layouts using Bootstrap Themes Learn the Foundations of React Work with JSX, and Functional Components in React Build a Calculator in React Learn the React State Hook Debug React Projects Learn to Style React Components Build a Single and Multi-Player Connect-4 Clone with AI Learn React Lifecycle Events Learn React Conditional Rendering Build a Fully Custom E-Commerce Site in React Learn the Foundations of JSON Server Work with React Router

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Build an Amazon Affiliate E-Commerce Store from Scratch

Earn Passive Income by Building an Amazon Affiliate E-Commerce Store using WordPress, WooCommerce, WooZone, & Elementor

What you'll learn

Registering a Domain Name & Setting up Hosting Installing WordPress CMS on Your Hosting Account Navigating the WordPress Interface The Advantages of WordPress Securing a WordPress Installation with an SSL Certificate Installing Custom Themes for WordPress Installing WooCommerce, Elementor, & WooZone Plugins Creating an Amazon Affiliate Account Importing Products from Amazon to an E-Commerce Store using WooZone Plugin Building a Customized Shop with Menu's, Headers, Branding, & Sidebars Building WordPress Pages, such as Blogs, About Pages, and Contact Us Forms Customizing Product Pages on a WordPress Power E-Commerce Site Generating Traffic and Sales for Your Newly Published Amazon Affiliate Store

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The Complete Beginner Course to Optimizing ChatGPT for Work

Learn how to make the most of ChatGPT's capabilities in efficiently aiding you with your tasks.

What you'll learn

Learn how to harness ChatGPT's functionalities to efficiently assist you in various tasks, maximizing productivity and effectiveness. Delve into the captivating fusion of product development and SEO, discovering effective strategies to identify challenges, create innovative tools, and expertly Understand how ChatGPT is a technological leap, akin to the impact of iconic tools like Photoshop and Excel, and how it can revolutionize work methodologies thr Showcase your learning by creating a transformative project, optimizing your approach to work by identifying tasks that can be streamlined with artificial intel

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AWS, JavaScript, React | Deploy Web Apps on the Cloud

Cloud Computing | Linux Foundations | LAMP Stack | DBMS | Apache | NGINX | AWS IAM | Amazon EC2 | JavaScript | React

What you'll learn

Foundations of Cloud Computing on AWS and Linode Cloud Computing Service Models (IaaS, PaaS, SaaS) Deploying and Configuring a Virtual Instance on Linode and AWS Secure Remote Administration for Virtual Instances using SSH Working with SSH Key Pair Authentication The Foundations of Linux (Maintenance, Directory Commands, User Accounts, Filesystem) The Foundations of Web Servers (NGINX vs Apache) Foundations of Databases (SQL vs NoSQL), Database Transaction Standards (ACID vs CAP) Key Terminology for Full Stack Development and Cloud Administration Installing and Configuring LAMP Stack on Ubuntu (Linux, Apache, MariaDB, PHP) Server Security Foundations (Network vs Hosted Firewalls). Horizontal and Vertical Scaling of a virtual instance on Linode using NodeBalancers Creating Manual and Automated Server Images and Backups on Linode Understanding the Cloud Computing Phenomenon as Applicable to AWS The Characteristics of Cloud Computing as Applicable to AWS Cloud Deployment Models (Private, Community, Hybrid, VPC) Foundations of AWS (Registration, Global vs Regional Services, Billing Alerts, MFA) AWS Identity and Access Management (Mechanics, Users, Groups, Policies, Roles) Amazon Elastic Compute Cloud (EC2) - (AMIs, EC2 Users, Deployment, Elastic IP, Security Groups, Remote Admin) Foundations of the Document Object Model (DOM) Manipulating the DOM Foundations of JavaScript Coding (Variables, Objects, Functions, Loops, Arrays, Events) Foundations of ReactJS (Code Pen, JSX, Components, Props, Events, State Hook, Debugging) Intermediate React (Passing Props, Destrcuting, Styling, Key Property, AI, Conditional Rendering, Deployment) Building a Fully Customized E-Commerce Site in React Intermediate React Concepts (JSON Server, Fetch API, React Router, Styled Components, Refactoring, UseContext Hook, UseReducer, Form Validation)

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Run Multiple Sites on a Cloud Server: AWS & Digital Ocean

Server Deployment | Apache Configuration | MySQL | PHP | Virtual Hosts | NS Records | DNS | AWS Foundations | EC2

What you'll learn

A solid understanding of the fundamentals of remote server deployment and configuration, including network configuration and security. The ability to install and configure the LAMP stack, including the Apache web server, MySQL database server, and PHP scripting language. Expertise in hosting multiple domains on one virtual server, including setting up virtual hosts and managing domain names. Proficiency in virtual host file configuration, including creating and configuring virtual host files and understanding various directives and parameters. Mastery in DNS zone file configuration, including creating and managing DNS zone files and understanding various record types and their uses. A thorough understanding of AWS foundations, including the AWS global infrastructure, key AWS services, and features. A deep understanding of Amazon Elastic Compute Cloud (EC2) foundations, including creating and managing instances, configuring security groups, and networking. The ability to troubleshoot common issues related to remote server deployment, LAMP stack installation and configuration, virtual host file configuration, and D An understanding of best practices for remote server deployment and configuration, including security considerations and optimization for performance. Practical experience in working with remote servers and cloud-based solutions through hands-on labs and exercises. The ability to apply the knowledge gained from the course to real-world scenarios and challenges faced in the field of web hosting and cloud computing. A competitive edge in the job market, with the ability to pursue career opportunities in web hosting and cloud computing.

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Cloud-Powered Web App Development with AWS and PHP

AWS Foundations | IAM | Amazon EC2 | Load Balancing | Auto-Scaling Groups | Route 53 | PHP | MySQL | App Deployment

What you'll learn

Understanding of cloud computing and Amazon Web Services (AWS) Proficiency in creating and configuring AWS accounts and environments Knowledge of AWS pricing and billing models Mastery of Identity and Access Management (IAM) policies and permissions Ability to launch and configure Elastic Compute Cloud (EC2) instances Familiarity with security groups, key pairs, and Elastic IP addresses Competency in using AWS storage services, such as Elastic Block Store (EBS) and Simple Storage Service (S3) Expertise in creating and using Elastic Load Balancers (ELB) and Auto Scaling Groups (ASG) for load balancing and scaling web applications Knowledge of DNS management using Route 53 Proficiency in PHP programming language fundamentals Ability to interact with databases using PHP and execute SQL queries Understanding of PHP security best practices, including SQL injection prevention and user authentication Ability to design and implement a database schema for a web application Mastery of PHP scripting to interact with a database and implement user authentication using sessions and cookies Competency in creating a simple blog interface using HTML and CSS and protecting the blog content using PHP authentication. Students will gain practical experience in creating and deploying a member-only blog with user authentication using PHP and MySQL on AWS.

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CSS, Bootstrap, JavaScript And PHP Stack Complete Course

CSS, Bootstrap And JavaScript And PHP Complete Frontend and Backend Course

What you'll learn

Introduction to Frontend and Backend technologies Introduction to CSS, Bootstrap And JavaScript concepts, PHP Programming Language Practically Getting Started With CSS Styles, CSS 2D Transform, CSS 3D Transform Bootstrap Crash course with bootstrap concepts Bootstrap Grid system,Forms, Badges And Alerts Getting Started With Javascript Variables,Values and Data Types, Operators and Operands Write JavaScript scripts and Gain knowledge in regard to general javaScript programming concepts PHP Section Introduction to PHP, Various Operator types , PHP Arrays, PHP Conditional statements Getting Started with PHP Function Statements And PHP Decision Making PHP 7 concepts PHP CSPRNG And PHP Scalar Declaration

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Learn HTML - For Beginners

Lean how to create web pages using HTML

What you'll learn

How to Code in HTML Structure of an HTML Page Text Formatting in HTML Embedding Videos Creating Links Anchor Tags Tables & Nested Tables Building Forms Embedding Iframes Inserting Images

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Learn Bootstrap - For Beginners

Learn to create mobile-responsive web pages using Bootstrap

What you'll learn

Bootstrap Page Structure Bootstrap Grid System Bootstrap Layouts Bootstrap Typography Styling Images Bootstrap Tables, Buttons, Badges, & Progress Bars Bootstrap Pagination Bootstrap Panels Bootstrap Menus & Navigation Bars Bootstrap Carousel & Modals Bootstrap Scrollspy Bootstrap Themes

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JavaScript, Bootstrap, & PHP - Certification for Beginners

A Comprehensive Guide for Beginners interested in learning JavaScript, Bootstrap, & PHP

What you'll learn

Master Client-Side and Server-Side Interactivity using JavaScript, Bootstrap, & PHP Learn to create mobile responsive webpages using Bootstrap Learn to create client and server-side validated input forms Learn to interact with a MySQL Database using PHP

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Linode: Build and Deploy Responsive Websites on the Cloud

Cloud Computing | IaaS | Linux Foundations | Apache + DBMS | LAMP Stack | Server Security | Backups | HTML | CSS

What you'll learn

Understand the fundamental concepts and benefits of Cloud Computing and its service models. Learn how to create, configure, and manage virtual servers in the cloud using Linode. Understand the basic concepts of Linux operating system, including file system structure, command-line interface, and basic Linux commands. Learn how to manage users and permissions, configure network settings, and use package managers in Linux. Learn about the basic concepts of web servers, including Apache and Nginx, and databases such as MySQL and MariaDB. Learn how to install and configure web servers and databases on Linux servers. Learn how to install and configure LAMP stack to set up a web server and database for hosting dynamic websites and web applications. Understand server security concepts such as firewalls, access control, and SSL certificates. Learn how to secure servers using firewalls, manage user access, and configure SSL certificates for secure communication. Learn how to scale servers to handle increasing traffic and load. Learn about load balancing, clustering, and auto-scaling techniques. Learn how to create and manage server images. Understand the basic structure and syntax of HTML, including tags, attributes, and elements. Understand how to apply CSS styles to HTML elements, create layouts, and use CSS frameworks.

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PHP & MySQL - Certification Course for Beginners

Learn to Build Database Driven Web Applications using PHP & MySQL

What you'll learn

PHP Variables, Syntax, Variable Scope, Keywords Echo vs. Print and Data Output PHP Strings, Constants, Operators PHP Conditional Statements PHP Elseif, Switch, Statements PHP Loops - While, For PHP Functions PHP Arrays, Multidimensional Arrays, Sorting Arrays Working with Forms - Post vs. Get PHP Server Side - Form Validation Creating MySQL Databases Database Administration with PhpMyAdmin Administering Database Users, and Defining User Roles SQL Statements - Select, Where, And, Or, Insert, Get Last ID MySQL Prepared Statements and Multiple Record Insertion PHP Isset MySQL - Updating Records

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Linode: Deploy Scalable React Web Apps on the Cloud

Cloud Computing | IaaS | Server Configuration | Linux Foundations | Database Servers | LAMP Stack | Server Security

What you'll learn

Introduction to Cloud Computing Cloud Computing Service Models (IaaS, PaaS, SaaS) Cloud Server Deployment and Configuration (TFA, SSH) Linux Foundations (File System, Commands, User Accounts) Web Server Foundations (NGINX vs Apache, SQL vs NoSQL, Key Terms) LAMP Stack Installation and Configuration (Linux, Apache, MariaDB, PHP) Server Security (Software & Hardware Firewall Configuration) Server Scaling (Vertical vs Horizontal Scaling, IP Swaps, Load Balancers) React Foundations (Setup) Building a Calculator in React (Code Pen, JSX, Components, Props, Events, State Hook) Building a Connect-4 Clone in React (Passing Arguments, Styling, Callbacks, Key Property) Building an E-Commerce Site in React (JSON Server, Fetch API, Refactoring)

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Internet and Web Development Fundamentals

Learn how the Internet Works and Setup a Testing & Production Web Server

What you'll learn

How the Internet Works Internet Protocols (HTTP, HTTPS, SMTP) The Web Development Process Planning a Web Application Types of Web Hosting (Shared, Dedicated, VPS, Cloud) Domain Name Registration and Administration Nameserver Configuration Deploying a Testing Server using WAMP & MAMP Deploying a Production Server on Linode, Digital Ocean, or AWS Executing Server Commands through a Command Console Server Configuration on Ubuntu Remote Desktop Connection and VNC SSH Server Authentication FTP Client Installation FTP Uploading

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Linode: Web Server and Database Foundations

Cloud Computing | Instance Deployment and Config | Apache | NGINX | Database Management Systems (DBMS)

What you'll learn

Introduction to Cloud Computing (Cloud Service Models) Navigating the Linode Cloud Interface Remote Administration using PuTTY, Terminal, SSH Foundations of Web Servers (Apache vs. NGINX) SQL vs NoSQL Databases Database Transaction Standards (ACID vs. CAP Theorem) Key Terms relevant to Cloud Computing, Web Servers, and Database Systems

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Java Training Complete Course 2022

Learn Java Programming language with Java Complete Training Course 2022 for Beginners

What you'll learn

You will learn how to write a complete Java program that takes user input, processes and outputs the results You will learn OOPS concepts in Java You will learn java concepts such as console output, Java Variables and Data Types, Java Operators And more You will be able to use Java for Selenium in testing and development

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Learn To Create AI Assistant (JARVIS) With Python

How To Create AI Assistant (JARVIS) With Python Like the One from Marvel's Iron Man Movie

What you'll learn

how to create an personalized artificial intelligence assistant how to create JARVIS AI how to create ai assistant

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Keyword Research, Free Backlinks, Improve SEO -Long Tail Pro

LongTailPro is the keyword research service we at Coursenvy use for ALL our clients! In this course, find SEO keywords,

What you'll learn

Learn everything Long Tail Pro has to offer from A to Z! Optimize keywords in your page/post titles, meta descriptions, social media bios, article content, and more! Create content that caters to the NEW Search Engine Algorithms and find endless keywords to rank for in ALL the search engines! Learn how to use ALL of the top-rated Keyword Research software online! Master analyzing your COMPETITIONS Keywords! Get High-Quality Backlinks that will ACTUALLY Help your Page Rank!

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Complete PHP Tutorial: Learn PHP from Scratch in 7 Days

Are you looking to learn backend web development and build dynamic websites with real functionality? You’re in the right place. Welcome to the Complete PHP Tutorial: Learn PHP from Scratch in 7 Days — a practical, beginner-friendly guide designed to help you master the fundamentals of PHP in just one week.

PHP, or Hypertext Preprocessor, is one of the most widely used server-side scripting languages on the web. It powers everything from small blogs to large-scale websites like Facebook and WordPress. Learning PHP opens up the door to back-end development, content management systems, and full-stack programming. Whether you're a complete beginner or have some experience with HTML/CSS, this tutorial is structured to help you learn PHP step by step with real-world examples.

Why Learn PHP?

Before diving into the tutorial, let’s understand why PHP is still relevant and worth learning in 2025:

Beginner-friendly: Easy syntax and wide support.

Open-source: Free to use with strong community support.

Cross-platform: Runs on Windows, macOS, Linux, and integrates with most servers.

Database integration: Works seamlessly with MySQL and other databases.

In-demand: Still heavily used in CMS platforms like WordPress, Joomla, and Drupal.

If you want to build contact forms, login systems, e-commerce platforms, or data-driven applications, PHP is a great place to start.

Day-by-Day Breakdown: Learn PHP from Scratch in 7 Days

Day 1: Introduction to PHP & Setup

Start by setting up your environment:

Install XAMPP or MAMP to create a local server.

Create your first .php file.

Learn how to embed PHP inside HTML.

Example:

<?php echo "Hello, PHP!"; ?>

What you’ll learn:

How PHP works on the server

Running PHP in your browser

Basic syntax and echo statement

Day 2: Variables, Data Types & Constants

Dive into PHP variables and data types:

$name = "John"; $age = 25; $is_student = true;

Key concepts:

Variable declaration and naming

Data types: String, Integer, Float, Boolean, Array

Constants and predefined variables ($_SERVER, $_GET, $_POST)

Day 3: Operators, Conditions & Control Flow

Learn how to make decisions in PHP:

if ($age > 18) { echo "You are an adult."; } else { echo "You are underage."; }

Topics covered:

Arithmetic, comparison, and logical operators

If-else, switch-case

Nesting conditions and best practices

Day 4: Loops and Arrays

Understand loops to perform repetitive tasks:

$fruits = ["Apple", "Banana", "Cherry"]; foreach ($fruits as $fruit) { echo $fruit. "<br>"; }

Learn about:

for, while, do...while, and foreach loops

Arrays: indexed, associative, and multidimensional

Array functions (count(), array_push(), etc.)

Day 5: Functions & Form Handling

Start writing reusable code and learn how to process user input from forms:

function greet($name) { return "Hello, $name!"; }

Skills you gain:

Defining and calling functions

Passing parameters and returning values

Handling HTML form data with $_POST and $_GET

Form validation and basic security tips

Day 6: Working with Files & Sessions

Build applications that remember users and work with files:

session_start(); $_SESSION["username"] = "admin";

Topics included:

File handling (fopen, fwrite, fread, etc.)

Reading and writing text files

Sessions and cookies

Login system basics using session variables

Day 7: PHP & MySQL – Database Connectivity

On the final day, you’ll connect PHP to a database and build a mini CRUD app:

$conn = new mysqli("localhost", "root", "", "mydatabase");

Learn how to:

Connect PHP to a MySQL database

Create and execute SQL queries

Insert, read, update, and delete (CRUD operations)

Display database data in HTML tables

Bonus Tips for Mastering PHP

Practice by building mini-projects (login form, guest book, blog)

Read official documentation at php.net

Use tools like phpMyAdmin to manage databases visually

Try MVC frameworks like Laravel or CodeIgniter once you're confident with core PHP

What You’ll Be Able to Build After This PHP Tutorial

After following this 7-day PHP tutorial, you’ll be able to:

Create dynamic web pages

Handle form submissions

Work with databases

Manage sessions and users

Understand the logic behind content management systems (CMS)

This gives you the foundation to become a full-stack developer, or even specialize in backend development using PHP and MySQL.

Final Thoughts

Learning PHP doesn’t have to be difficult or time-consuming. With the Complete PHP Tutorial: Learn PHP from Scratch in 7 Days, you’re taking a focused, structured path toward web development success. You’ll learn all the core concepts through clear explanations and hands-on examples that prepare you for real-world projects.

Whether you’re a student, freelancer, or aspiring developer, PHP remains a powerful and valuable skill to add to your web development toolkit.

So open up your code editor, start typing your first <?php ... ?> block, and begin your journey to building dynamic, powerful web applications — one day at a time.

[om-kumar123]

Subtracting Two Numbers

There are three methods to subtract two numbers:

Subtraction in simple code in PHP

Subtraction in form in PHP

Subtraction without using arithmetic operator (+).

[saifosys]

Operators in php with syntax and examples

Operators in php with syntax and examples Operators are symbols used to perform operations on variables and values. PHP supports various types of operators, including: 1. Arithmetic Operators: Perform mathematical operations. Syntax: $x + $y $x - $y $x * $y $x / $y $x % $y Examples: $a = 10; $b = 5; echo $a + $b; // outputs 15 echo $a - $b; // outputs 5 echo $a * $b; // outputs 50 echo $a /…

[initialcommit]

Refresher on how to write Arithmetic Operators in Python, Java, JavaScript, C, and PHP. Follow @initialcommit for more programming content. Check out our website https://initialcommit.io for programming articles, books, live sessions, and how to create your own code-oriented website. #initialcommit #arithmetic #operators #python #pythonprogramming #java #javaprogramming #javascript #cprogramming #php #programming #coding #learnprogramming #learncoding #softwaredevelopment https://www.instagram.com/p/CABG7wOFzeU/?igshid=17m0yd4twt19z

[deeperry604]

PHP Programming Help for Students

The PHP Assignment for students can include questions based on the OOPs concepts in PHP, Database Management in PHP, Session, Cookies, Real-Time applications, and basic knowledge of at least one framework of PHP. Sometimes the PHP assignments for practice may include questions related to pre-requisites of PHP such as HTML, CSS, and JavaScript. Whatever your need may be, https://www.bestassignmentsupport.com/programming-assignment-help/php-assignment-help.php has a team of PHP programming experts who can help you write your PHP assignments by providing you access to a lot of information that you can use as a point of reference in your assignments.

PHP ASSIGNMENT WRITING HELP FROM BASIC TO ADVANCED MODULES

Our PHP assignment help online will include all the topics from the Foundation of PHP to advanced PHP modules. PHP assignments for beginners may vary from the simplest scripts to some complex tasks. Some of the basic PHP assignment help topics are:

Topics Covered in PHP

Introduction to PH

What is PHP: installation and setup

PHP echo

PHP print

Variables and constants in PHP

Rules to define variables and constants in PHP

Types of variables: local, global and static

Magic constants in PHP

Data types in PHP

Scalar types

Compound types

Special types

Operators in PHP

Arithmetic Operators

Comparison Operators

Bitwise Operators

Logical Operators

Incrementing/Decrementing Operators

Array Operators

Type Operators

Execution Operators

Error Control Operators

Assignment Operators

Control statements in PHP

[chtipsonline-blog]

What Are Modern Computer And Its Advantages And Disadvantages?

The modern computer is used for various task and operations. Computers are electronic devices or gadgets which are used for arithmetic and logical operations which are performed in incredible speed.

Not only are these operations executed in speed but also in unbelievable accuracy. The computers nowadays can store huge amount of data into their external memory and also can be retrieve whenever user demands.

The modern computers are cheaper these days due to rapid development in computer technology made computer devices and peripherals cheaper and advanced.

The word computer is derived or taken from the Latin word "computare" which means to calculate or calculations. There are basically three functions of computer system that are:

The computer firstly accept data from the input devices like keyboard or mouse later this data or information is transferred to the processing unit of computer and later final output is presented with the help of output devices such as printers, monitors etc.

What is the Full Form of Computer?

C- Commonly, O-operated, M-Machine, P-Particularly, U-Used For, T- Technical, E –Education, R-Research.

Different Types of Computer System

There are four different types of computer system which are mentioned below.

Mini Computers.

Micro Computers.

Personal Computers.

Super Computers

Mini Computers:

These computers are small in size but the storage capacity of these types of computers is huge. The first minicomputer was built in 1960 by IBM Corporation [International Business Machines] and the name was PDP-1 .These computers were built for handling business applications and services.

These minicomputers are able to handle and access hundreds of computer simultaneously.

Microcomputers: These computers were built in 1970 they had microprocessor installed them therefore were called as "Micro Computer". They are cheaper, faster and powerful computers which are very useful computers.

PC-XT was the first successful micro computer which had 8088 family micro processor. They used 64mb RAM and approx 5GB of hard disk.

Personal Computers: The personal computers are also called as "PC". These computers are fast, cheap and small in size and can be installed in a small place.

They are mobile computers as they can easily transfer from one location to another for example laptops. The laptops run on battery where power is stored.

Using this computer one can play games, watch movies, download software, create animations and work on documents etc.

Supercomputers: They are the fastest computer when compared to others. They can perform billions and billions of instructions per second.

The supercomputers are used in artificial intelligence, genetic engineering, atomic research, weather forecast, scientific research and solving complex algorithms.

Basic Characteristics of Computer System.

The characteristics of computer have been changed dramatically due to the overall development and enhancement made in the computer technology field.

Some of the basic characteristics of computer system are mentioned below.

Speed

Accuracy

Automatic

Diligence

Versatility

Memory

Let us try to discuss them in brief

Speed: A computer can work in mind blowing speed . The Speed of computer is measured in milliseconds, microseconds and picoseconds. Some of the modern computer can execute millions and millions of instructions per seconds.

The Speed of modern computer is considered to be the main characteristics of computer.

Accuracy: Not only computer can work in blazing speed it works in almost 100% accuracy. The accuracy of computer can be seen where numerous amount of complex calculations are done in fractions of seconds.

GIGO is a famous term used for accuracy which exactly means Garbage In and Garbage Out. Let me try to elaborate this term.

The errors which are occurred during process can be considered as human error because computer simply works on the input provided to them if the input is wrong or inaccurate the output will also be wrong or inaccurate.

Automatic: This term can be explained with the help of an example. Imagine you need to download a movie or software or data which is taking approx 2 hrs to download you need not to wait for computer to download that completely you just have to rely on computer to finish this process of downloading completely which is done fully automatically.

Many machines which are used in production area have been modified to perform certain task and operations automatically.

Diligence: The computer does not have human feeling and tendency like boredom, laziness or rebel the task or job provided to them are done with the same speed throughout with accuracy and perfection.

Due to this characteristic, computer and these modern machines are used in small and large organizations for better performance and increased productivity.

Versatility

The computers are all rounder in nature they can perform several task pointed to them at a single given time. They can download software, movies or games simultaneously while download is in progress in can play games or listen songs or work on any other software like word ,excel ,PowerPoint or perform programming like PHP and Java.

Memory: According to me this is the best characteristics of computer as they can save huge amount of data permanently and can be recalled whenever we need.

Advantages of Computers

The modern computes has reached to each and every corner of human society just because of its usefulness they have made an important impact on our day to day life. Computers are used in small and big organizations, educational institutions, research etc.

Below I have mentioned few of the important advantages of the computer system

Education

Online Shopping

Research

Sports

Education: Life has changed so the traditional ways of learning and acquiring knowledge has been changed dramatically. Let me share one incident with you who changed my entire perception on computers and internet.

One day my grand mom came and asked how to prepare pizza in home without proper equipments? no one in the family had a proper answer to it so she went and juggled some recipe books with no result finally she decided to use internet and she just surf YouTube and Google for an hour . After finishing her research on pizza I just saw a spark in her eyes and after just 2 hours she was ready with an amazing pizza which I have never had in my life. So amazing.

In this short incident I was amazed with the power of computer and internet .In today’s scenario you can have every education online with your convenience

I have learnt programming like VB, PHP, MySQL etc on internet therefore many scholars have jumped into the conclusions that computer have made a great impact on education.

Online Shopping: The revolutionary aspects of computer with internet are online shopping you can purchase anywhere, anytime with numerous choices, and with good refund policy.

The number of sales happening in today’s generation is staggering.

Research: The scientist use computer as computer can solve complex to complex algorithms and problems in very less amount of time as well as they can store the data and information done while experimenting.

Supercomputer is used in such type of research which is considered to be the fastest and most expensive computer when compared to other computers like mini, micro, mainframe, and personal computer.

Sports: The computer are used in sports to store the previous and present records of the players. Computers are also used to store videos of the match so that players can watch them later and access the points where they can improve their game as a player.

[hydralisk98]

hydralisk98′s web projects tracker:

Core principles=

Fail faster

‘Learn, Tweak, Make’ loop

This is meant to be a quick reference for tracking progress made over my various projects, organized by their “ultimate target” goal:

(START)

(Website)=

Install Firefox

Install Chrome

Install Microsoft newest browser

Install Lynx

Learn about contemporary web browsers

Install a very basic text editor

Install Notepad++

Install Nano

Install Powershell

Install Bash

Install Git

Learn HTML

Elements and attributes

Commenting (single line comment, multi-line comment)

Head (title, meta, charset, language, link, style, description, keywords, author, viewport, script, base, url-encode, )

Hyperlinks (local, external, link titles, relative filepaths, absolute filepaths)

Headings (h1-h6, horizontal rules)

Paragraphs (pre, line breaks)

Text formatting (bold, italic, deleted, inserted, subscript, superscript, marked)

Quotations (quote, blockquote, abbreviations, address, cite, bidirectional override)

Entities & symbols (&entity_name, &entity_number, &nbsp, useful HTML character entities, diacritical marks, mathematical symbols, greek letters, currency symbols, )

Id (bookmarks)

Classes (select elements, multiple classes, different tags can share same class, )

Blocks & Inlines (div, span)

Computercode (kbd, samp, code, var)

Lists (ordered, unordered, description lists, control list counting, nesting)

Tables (colspan, rowspan, caption, colgroup, thead, tbody, tfoot, th)

Images (src, alt, width, height, animated, link, map, area, usenmap, , picture, picture for format support)

old fashioned audio

old fashioned video

Iframes (URL src, name, target)

Forms (input types, action, method, GET, POST, name, fieldset, accept-charset, autocomplete, enctype, novalidate, target, form elements, input attributes)

URL encode (scheme, prefix, domain, port, path, filename, ascii-encodings)

Learn about oldest web browsers onwards

Learn early HTML versions (doctypes & permitted elements for each version)

Make a 90s-like web page compatible with as much early web formats as possible, earliest web browsers’ compatibility is best here

Learn how to teach HTML5 features to most if not all older browsers

Install Adobe XD

Register a account at Figma

Learn Adobe XD basics

Learn Figma basics

Install Microsoft’s VS Code

Install my Microsoft’s VS Code favorite extensions

Learn HTML5

Semantic elements

Layouts

Graphics (SVG, canvas)

Track

Audio

Video

Embed

APIs (geolocation, drag and drop, local storage, application cache, web workers, server-sent events, )

HTMLShiv for teaching older browsers HTML5

HTML5 style guide and coding conventions (doctype, clean tidy well-formed code, lower case element names, close all html elements, close empty html elements, quote attribute values, image attributes, space and equal signs, avoid long code lines, blank lines, indentation, keep html, keep head, keep body, meta data, viewport, comments, stylesheets, loading JS into html, accessing HTML elements with JS, use lowercase file names, file extensions, index/default)

Learn CSS

Selections

Colors

Fonts

Positioning

Box model

Grid

Flexbox

Custom properties

Transitions

Animate

Make a simple modern static site

Learn responsive design

Viewport

Media queries

Fluid widths

rem units over px

Mobile first

Learn SASS

Variables

Nesting

Conditionals

Functions

Learn about CSS frameworks

Learn Bootstrap

Learn Tailwind CSS

Learn JS

Fundamentals

Document Object Model / DOM

JavaScript Object Notation / JSON

Fetch API

Modern JS (ES6+)

Learn Git

Learn Browser Dev Tools

Learn your VS Code extensions

Learn Emmet

Learn NPM

Learn Yarn

Learn Axios

Learn Webpack

Learn Parcel

Learn basic deployment

Domain registration (Namecheap)

Managed hosting (InMotion, Hostgator, Bluehost)

Static hosting (Nertlify, Github Pages)

SSL certificate

FTP

SFTP

SSH

CLI

Make a fancy front end website about 

Make a few Tumblr themes

===You are now a basic front end developer!

Learn about XML dialects

Learn XML

Learn about JS frameworks

Learn jQuery

Learn React

Contex API with Hooks

NEXT

Learn Vue.js

Vuex

NUXT

Learn Svelte

NUXT (Vue)

Learn Gatsby

Learn Gridsome

Learn Typescript

Make a epic front end website about 

===You are now a front-end wizard!

Learn Node.js

Express

Nest.js

Koa

Learn Python

Django

Flask

Learn GoLang

Revel

Learn PHP

Laravel

Slim

Symfony

Learn Ruby

Ruby on Rails

Sinatra

Learn SQL

PostgreSQL

MySQL

Learn ORM

Learn ODM

Learn NoSQL

MongoDB

RethinkDB

CouchDB

Learn a cloud database

Firebase, Azure Cloud DB, AWS

Learn a lightweight & cache variant

Redis

SQLlite

NeDB

Learn GraphQL

Learn about CMSes

Learn Wordpress

Learn Drupal

Learn Keystone

Learn Enduro

Learn Contentful

Learn Sanity

Learn Jekyll

Learn about DevOps

Learn NGINX

Learn Apache

Learn Linode

Learn Heroku

Learn Azure

Learn Docker

Learn testing

Learn load balancing

===You are now a good full stack developer

Learn about mobile development

Learn Dart

Learn Flutter

Learn React Native

Learn Nativescript

Learn Ionic

Learn progressive web apps

Learn Electron

Learn JAMstack

Learn serverless architecture

Learn API-first design

Learn data science

Learn machine learning

Learn deep learning

Learn speech recognition

Learn web assembly

===You are now a epic full stack developer

Make a web browser

Make a web server

===You are now a legendary full stack developer

[...]

(Computer system)=

Learn to execute and test your code in a command line interface

Learn to use breakpoints and debuggers

Learn Bash

Learn fish

Learn Zsh

Learn Vim

Learn nano

Learn Notepad++

Learn VS Code

Learn Brackets

Learn Atom

Learn Geany

Learn Neovim

Learn Python

Learn Java?

Learn R

Learn Swift?

Learn Go-lang?

Learn Common Lisp

Learn Clojure (& ClojureScript)

Learn Scheme

Learn C++

Learn C

Learn B

Learn Mesa

Learn Brainfuck

Learn Assembly

Learn Machine Code

Learn how to manage I/O

Make a keypad

Make a keyboard

Make a mouse

Make a light pen

Make a small LCD display

Make a small LED display

Make a teleprinter terminal

Make a medium raster CRT display

Make a small vector CRT display

Make larger LED displays

Make a few CRT displays

Learn how to manage computer memory

Make datasettes

Make a datasette deck

Make floppy disks

Make a floppy drive

Learn how to control data

Learn binary base

Learn hexadecimal base

Learn octal base

Learn registers

Learn timing information

Learn assembly common mnemonics

Learn arithmetic operations

Learn logic operations (AND, OR, XOR, NOT, NAND, NOR, NXOR, IMPLY)

Learn masking

Learn assembly language basics

Learn stack construct’s operations

Learn calling conventions

Learn to use Application Binary Interface or ABI

Learn to make your own ABIs

Learn to use memory maps

Learn to make memory maps

Make a clock

Make a front panel

Make a calculator

Learn about existing instruction sets (Intel, ARM, RISC-V, PIC, AVR, SPARC, MIPS, Intersil 6120, Z80...)

Design a instruction set

Compose a assembler

Compose a disassembler

Compose a emulator

Write a B-derivative programming language (somewhat similar to C)

Write a IPL-derivative programming language (somewhat similar to Lisp and Scheme)

Write a general markup language (like GML, SGML, HTML, XML...)

Write a Turing tarpit (like Brainfuck)

Write a scripting language (like Bash)

Write a database system (like VisiCalc or SQL)

Write a CLI shell (basic operating system like Unix or CP/M)

Write a single-user GUI operating system (like Xerox Star’s Pilot)

Write a multi-user GUI operating system (like Linux)

Write various software utilities for my various OSes

Write various games for my various OSes

Write various niche applications for my various OSes

Implement a awesome model in very large scale integration, like the Commodore CBM-II

Implement a epic model in integrated circuits, like the DEC PDP-15

Implement a modest model in transistor-transistor logic, similar to the DEC PDP-12

Implement a simple model in diode-transistor logic, like the original DEC PDP-8

Implement a simpler model in later vacuum tubes, like the IBM 700 series

Implement simplest model in early vacuum tubes, like the EDSAC

[...]

(Conlang)=

Choose sounds

Choose phonotactics

[...]

(Animation ‘movie’)=

[...]

(Exploration top-down ’racing game’)=

[...]

(Video dictionary)=

[...]

(Grand strategy game)=

[...]

(Telex system)=

[...]

(Pen&paper tabletop game)=

[...]

(Search engine)=

[...]

(Microlearning system)=

[...]

(Alternate planet)=

[...]

(END)

[infoanalysishub]

PHP Numbers Tutorial with Examples for Beginners

Learn all about PHP Numbers including integers, floats, arithmetic operations, type checks, casting, and formatting with examples and functions. PHP – Numbers: A Complete Guide Numbers are a fundamental part of programming, and PHP is no exception. In PHP, numbers are used for arithmetic operations, comparisons, loops, and much more. PHP supports several types of numeric values including…

[learnershub101]

4 Udemy Paid Courses for Free with Certification (Limited Time for Enrollment)

1. 07 Days of Code | Python Programming BootCamp

Python Programming Language with Full Practical, Exercises, Assignments, Problems and their Solutions.

What you'll learn

You will learn Python within few days with practical examples, exercises, assignments, and problems with solutions.

You will learn Fundamental of Python as data types, Input / Output Operations, List, Tuples, Dictionary, SET, Decision Making, Loops, Functions etc

You will learn Python Programming with solving Real World Problems with their solution.

You will learn how to create a Python based website.

You will get Python based Quiz at the end of the Course

By the end of this 7-day course, students will have the confidence and skills to learn more advanced Python topics, such as machine learning, data science, and

By the end of this course, students will have a solid understanding of Python programming fundamentals and be able to write basic Python programs.

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Learn Java Programming And PHP Programming In One Complete Course

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You will learn how to write a complete Java program that takes user input, processes and outputs the results

You will learn java concepts such as console output, Java Variables and Data Types, Java Operators And more

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You will learn PHP arithmetic, assignment, conditional, comparison operators

You will learn PHP loops and conditional statements,POST and GET and more.

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Mastering Java 17 with the modern features, know how it works. Become A Professional Java Developer in no time!

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Java Tools and Setup

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Strings and Working with text using Java Techniques

Flow control and Making Different Decisions: if - else if - else, and switch - case

Loops, Repetitions, and Iterations: while, do while, for, and Controlling blocks

Working with Arrays in depth

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4. Object-Oriented Programming (OOP) - Learn to Code Faster

Learn and Practice Object-Oriented Programming(OOP) with Python, Know how it works, and Learn how to code faster 2024

What you'll learn

Understand the benefit of using Object-Oriented Programming

Learn how to build programs faster in Python

Use and apply the classes and instances components and tools with many examples

How to use different types of inheritance in different scales

Learn Encapsulation for wrapping code and data together into a single unit

Learn all about Access Modifiers and Getters and Setters

How to use and apply Polymorphism in an object oriented style with many examples

Learn how to abstract a problem in OOP in action

Practice Object oriented programming, basics to advanced level, using Modern Python

Get the instructor QA support

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4 Udemy Paid Courses for Free with Certification (Limited Time for Enrollment)

[thecodernet]

Programming languages in 2020 Programming languages in 2020 : Hello friends, there is a high demand for programming languages in today's time and it will be increased in the future, so programming jobs are getting a good salary at today's time average position. In the tech world, knowledge of any one programming language increases the value of your resumé.  If you are new to the profession of software development, the most challenging part of learning programming is choosing where to start. There are hundreds of programming languages ​​in large-scale use, each with its own complexities and unknowns.  The good news is that as you start your journey as a software developer, you will start to know which programming language will be best satisfied for you, your concerns and career purposes.  These programming languages are accepted in every sector. For example, financial and enterprise systems require programming languages like Java and C # to perform many complex functions and to be highly organized. Media and design-related webpages and software want powerful, varied or operative languages such as Ruby, PHP, JavaScript, and Objective-C. Best Programming Languages in 2020:  Python Programming Language:   Python is a high-level, server-side scripting language for websites and mobile apps.  Python It is recognized as an easy language for newcomers due to its readability and compressed syntax, Meaning developers can describe the concept by using only several lines of code. These web apps control, such as Instagram, Pinterest, and Rdio. Google it, Yahoo! And NASA also uses. The programming language presents a great starting point for newcomers. Talking about people who are looking for a better job, you should definitely learn Python! A lot of Startups are using Python as their basic backend stack and therefore, this opens up a large opportunity for full-stack Python developers. Learn Python from Here:  1. Udemy  2.Coding Ninjas. Java Programming Language:  Java is a class-based, object-oriented programming language that Sun Microsystems discovered in the 1990s. Java It is one of the most demanding programming languages, which is also used in business software, web-based content, games and mobile apps, and the Android operating system.  Java is also generally used in Android App development. Almost any industry today needs Android applications due to the fact that there are billions of Android users now. This opens up a huge opportunity for Java developers, given the fact that Google has built an excellent Java-based Android development framework - Android Studio. Java has been designed in such a way that you can apply it in multiple software platforms. For example, a program designed for Mac OS X can also be applied in Windows. Learn JAVA from here: 1.Udemy  2.W3school C++ Programming Language:  C ++ is an intermediate-level language with object-oriented programming features that are originally designed and support C language.  C ++ major software alike Firefox powers Winamp and Adobe programs. It is used to improve systems software, application software, high-performance servers, client applications, and video games. C ++ also allows something called STL - Standard Template Library. STL is a supply of ready-to-use libraries for different data structures, arithmetic operations, and algorithms. Library support and language speed make it a popular choice in the high-frequency trading community as well. Learn C++ from here: 1.Learncpp  2.Codecademy also read: What is Programming Language and Machine Language? JavaScript Programming Language:   JavaScript is a customer and server-side scripting language that Netscape has created. Most of its syntax is obtained from C.  It can be used on various web browsers and it can be used to develop animated web functions.  It is also used in making game development and desktop applications. JavaScript editors are used in Google's Chrome extensions, Apple's Safari extensions, Adobe Acrobat and Reader, and Adobe's Creative Suite. There are also several libraries and FRAMEWORKS to make JavaScript development more accessible. Some of the most popular frameworks include Angular, React, Vue, Ember, and jQuery. A JavaScript developer will require experience with one or more of these.  Learn JavaScript from here: 1.W3School 2.Codecademy. Go Programming Language:  Go, also known as Golang, is a programming language designed by Google.  Go gives superior support for multithreading and therefore, it is being used by a lot of businesses that rely massively on distributed systems.  Go is generally used in startups in Silicon Valley. However, it is yet to be used by Indian companies/startups. Those who want to join a valley-based startup practicing in core systems should understand Golang. Learn GO from here:  1.Golang 2.guru99 R Programming Language:   R programming language is one of the most generally used programming languages ​​for data analysis and machine learning.  R gives excellent frameworks and built-in libraries to develop powerful machine learning algorithms.  R is used for common statistical computing as well as graphics. R is well used by enterprises. Those who want to join the "analytics" team of a large organization must definitely learn R. Learn R from here:   1.Codecademy.  2.Guru99 Swift Programming Language:   Swift is the programming language used to develop iOS applications.  iOS-based devices are becoming frequently popular. For example, the Apple iPhone has captured a significant market share and is giving a tough competition to Android.  Therefore, those who want to serve this community can master Swift programming. Learn Swift from here:  1.Tutorialspoint. PHP Programming Language: PHP (Hypertext Processor) is a free, server-side scripting language created for powerful websites and app development.  It can be quickly embedded as an HTML source document without building any external file, which is why it is a famous programming language for web developers.  PHP controls more than 200 million websites, such as WordPress, Digg, and Facebook. Those who want to join a very prosperous older organization as back-end developers should try to learn Php programming. Learn PHP from here:  1.W3school  2.Codecademy  also read: Database Management System - Everything about DBMS-MySQL C# Programming Language:  It is pronounced as "C-sharp," C # is a multi-paradigm language that Microsoft has created and is a part of the .NET initiative.  It combines the principles of C and C ++, C # is a general-purpose language to develop software for Microsoft and Windows platforms. Are done. C # is a general-purpose programming language developed by Microsoft. C # is popularly used to build the back-end of Windows Phone applications. Learn C# from here:   1. Codecademy  2.Javapoint SQL Programming Language:  Structured Query Language (SQL) is a special-purpose language used in database management systems to handle data.  It is usually used for the "Query" function, which searches informational databases. SQL was standardized in the 1980s by the American National Standards Institute (ANSI) and the International Organization for Standardization (ISO). Learn SQL from here:   1. Khanacademy  2. Guru99  Conclusion: These are all very best points about which you can create Programming languages in 2020. Let us tell you that on all these Best Points you can create both videos and text content.   If you have any doubts about this article or you want that there should be some improvement in it, then for this you can write the below comments. If you liked this post on Programming languages in 2020 or got to learn something, then please share this post on social networks such as Facebook, Twitter, and other social media sites. Wait wait wait ................👀👀 Here a meme for You Funny top 10 programming languages of the future, top 10 programming languages 2020, most in-demand programming languages 2020, most popular programming languages,, the best programming language for software development top trending programming languages

http://www.thecodernet.com/2020/02/Programming-languages-in-2020.html

[aelumconsulting]

Case Study: Exception Handling In PHP

What is an Exception?

An exception is an unwanted event in the program that interrupts the normal flow of the instructions. It is the unexpected outcome of the program.  The major difference between the error and exception is that the exception can be handled by the program, unlike error.

Exception Handling in PHP

Exception handling is the process of handling the exception (run time errors) to induce the normal flow of the code execution. This is the set of actions we take to handle the unwanted behavior of the code. The main goal is to execute the program without any unexpected behavior and outcome of the code.

When an exception occurs in the program, It proceeds generally using these steps:

The current code state is saved.

The code implementation will switch to a custom exception handler function

Then the handler resumes the execution from the saved code state, terminates the script execution / continues the execution from a different location in the code.

Need of Exception Handling in PHP

PHP provides different functionalities in exception handling. It can handle various runtime errors such as IOException, SQLException, ClassNotFoundException, and arithmetic exceptions.

The following keywords are used when we use exception handling in PHP- Try, catch, throw, finally.

Try: It is the block of code in which an exception is present. This piece of code raises the exception. Try block should have a catch or finally block. It contains more than one catch block too.

Throw: The throw keyword is used to symbolize the occurrence of a PHP exception Then we try to find a catch statement to handle this exception.

Catch:  This is the block of code that is executed when the try block throws an exception. It is responsible for handling the exception in the try block. It is always used with the try block.

Finally: The PHP 5.5 version introduced the “finally” statement in PHP. The “finally” block can be used after a catch block or in place of catch blocks. “Finally “ term means that it will be executed no matter the exception is thrown or not. It generally executes the necessary parts of the program. We use it for many purposes like closing the files, closing the open databases connections, etc.

The Basic syntax which we use when handle the exceptions using try and catch is given below.

Multiple Exceptions– Multiple exceptions use multiple try-catch blocks for the implementation and execution of the code. It is used when you want to show the customized message or you wanted to perform some unique operation when the exception is thrown.

In the single program, multiple exceptions can be there like arithmetic exceptions, IO exceptions. We will help you to understand the concept of Multiple exceptions firstly by flowchart representation and then by executing the program.

Flowchart to Describe the working of Multiple Exceptions

Now here is an example for the multiple exceptions using the program.

We will implement the code that divides a number by the number in the denominator.

We have the chance to get the two types of exceptions by dividing the number by zero or by dividing the number by a negative number.

We can work with the multiple cases of exceptions

The code below shows the implementation.

Here we are writing the code when we divide a number by the denominator there are two chances of exceptions one is by dividing it to zero or by a negative number. In the program, we are using multiple catches to solve the exceptions.

Using multiple try-catch with multiple exception types

PHP supports the use of more than one nested catch block to handle their thrown exceptions. This provides us the permission to alter our code based on the type of exception thrown. This is useful for customizing how you display an error message. We can handle different types of exceptions using the catch blocks.

The syntax is given below:

Use of  try-catch-finally

Introduced in PHP version 5.5, Sometimes we can also use a “finally” section. Finally is useful in many cases it is not just limited to exception handling, it is used to perform the necessary tasks, and in the cases where the execution is independent of exceptions.

The “finally”  block is always used when the try-catch block exits. It ensures that finally block is executed in any situation.

Example for using try-catch-finally:

Flowchart to tell you how this program works.

Explanation of the working of flowchart

Firstly we check If the exception occurs or not and if occurs it will be handled by the catch block. There are two chances-

The exception will be handled

The exception will not be handled.

If the exception is handled by the catch block then the “finally’’ block will be executed too.

If the exception is not handled, then also the “finally” block will be executed itself.

Conclusion of Exception Handling in PHP

The concept of exception is almost similar in all the languages. Exception Handling ensures the normal execution of the programs and we can handle it using try, catch, throw, and finally keywords in PHP.

For More Details And Blogs : Aelum Consulting Blogs

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[logicrays-acadmey]

Advanced PHP Topics Every PHP Developer Should Know

Be it WordPress plugin or developing a legacy PHP site, PHP development skills are in high demand in present times.

PHP is a flexible and powerful tool for software development. It has brought big changes in the working of web pages. It has also introduced changes in user interaction with those web pages. PHP is a considerably easier -to-learn language when compared to other programming languages. PHP is a popularly used server-side programming language. Even today, more than 78.1% of web pages are powered by PHP

Due to this vast popularity, it is impossible for web developers not to have a basic working knowledge of PHP. But one can’t use the language to its full potential with just the basic knowledge. After you have completed the core knowledge course of the PHP language, you need to step up to learn the advanced PHP topics.

What Are The Advanced PHP Topics Every Developer Should Know?

The advanced PHP topics help you build a preformat, secure, scalable, and reliable web application. Below is a detailed list of PHP advanced concepts every PHP developer should know:

1. Variables and operators

One of the most vital topics in PHP is variables and operators. Variables are memory locations that are used for storing data. In other words, variables are considered containers for storing information. These memory locations stores numeric values, character values, strings, and memory addresses. The declared variable always starts with the $ sign. The scope of the variable which is the portion within /which it is accessible is of 3 types, local, global and static.

Operators are used for performing operations on given values or variables. The operators take a value, perform a function on it and give us a result. The PHP supports several types of operations like arithmetic, logical or rational. The operators are symbols to perform these operations.

2. OOP in PHP4 and PHP5

Another PHP advanced topic is OOP, also known as object-oriented programming. It is used to create objects that have both objects and data. OOP allows creating reusable applications with less code and requires shorter development time. The main aim of object-orient programming is to bind data and functions into containers called objects. The process of binding data and function is called encapsulation. Another concept which enters here is class. The Class defines how data and functionality are bonded together. Classes are templates for objects while objects are instances of classes. The fundamental difference between OOP in PHP4 and PHP5 is the latter has PHP data objects, JSON support, and a block for exception handling.

3. MySQL database form PHP

MySQL is a database system used on the web. It is the most popularly used database with PHP. MySQL is ideal for both small and large applications and is reliable, fast, and easy to use. These databases are useful for storing information categorically. In MySQL, these databases are storage for data arranged in tables consisting of rows and columns. When PHP is combined with MySQL database it becomes cross-platform. A contact form is created in PHP to connect the users to website administrators. They can send queries to the website administrators regarding the products and services. These queries can easily connect to the database, thus making it easy for the website administrators to find the specific information and have a record set return.

4. Sessions and Cookies

A cookie is a small file of 4KB that a server embeds in the user’s computer. Every time a user requests the browser for a webpage, it also sends the cookies. These cookies are taken into use to identify the user. Cookies allow the creation of a personalized surfing environment for use. It helps in tracking the sites visited by the user. PHP allows creating and also retrieving a cookie value.

On the other hand, a session is stored information in variables on the server. It is also considered a global variable stored on the server. When a session is created, a cookie is generated with a unique ID of the session. The cookie is later stored in the user’s computer. Sessions are generally created in an application where temporary information larger than 4KB has to be stored.

5. Basic Error Handling And Security

The default error handling in PHP gives a file name, line number, and type of error. It is pretty simple in PHP. In the process of developing web applications and scripts, error handling is an important part. If the code lacks error checking code, the program may be open to risks and look unprofessional. There are two types of error handling methods in PHP,

Die () statement: print a message and exit from the current script

Custom error handling and error triggering: Creating a custom function that can be called when the error occurs in PHP

6. Web Application Implementation

PHP is used to develop dynamic applications and websites. It only needs to be installed on the webserver that will host the web application. The client application can then access the server resource via the web browser. PHP has inbuilt support of working with the MySQL database system. Object-Operating Programming in PHP is used to create the web application. The PHP shows flexibility and can run under almost all operating systems. It is open source and hence, decreases the time required resources for web application implementation.

7. Frameworks

Frameworks in PHP provides the structure of web applications. They are advantageous for streamlining the process of the development of web applications. It promotes Rapid Application Development, which in turn promotes reduced time, development of more stable applications and reduces the repetitive coding for the developers. The main structure behind the working of the PHP framework is Model View Controller. It is architectural planning in web application development that separates business logic from the UI. This allows isolated modification of both elements. Hence, making coding in PHP faster and easier.

Conclusion PHP is a server scripting language and is a powerful tool for developing dynamic web applications. It is the most popularly used programming language, due to which PHP developers are in very high demand. While many courses for PHP provide a basic knowledge of PHP, learning the advanced PHP topics make you an efficient developer. PHP is an easy-to-learn language, and the PHP advanced topics reduce the time you devote to developing a web application. when you know the advanced concepts to learn in PHP dedicate yourself to learning them and enhancing your skills as a PHP developer.

Conclusion PHP is a server scripting language and is a powerful tool for developing dynamic web applications. It is the most popularly used programming language, due to which PHP developers are in very high demand. While many courses for PHP provide a basic knowledge of PHP, learning the advanced PHP topics make you an efficient developer. PHP is an easy-to-learn language, and the PHP advanced topics reduce the time you devote to developing a web application. when you know the advanced concepts to learn in PHP dedicate yourself to learning them and enhancing your skills as a PHP developer.

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Understanding the Language of Computers

Many of us may have this doubt about how computers understand these many languages. We do hear about the programming languages such as to Hire Php Developers India etc. However, talking about the bigger world than Hire Php Developers India to get clarity, you people have to read this article. First of all, a computer does not end with the diameter of Hire Php Developers India, but also it is nothing but an electronic device which is used for computing. Something like arithmetic operations such as addition, subtraction etc. or to find roots of a quadratic equation. Some people say Computer stands for Common Operating Machine Purposely Used for Technological and Educational Research.

Computers play an important role in our day-to-day life and many of us are using them regularly for various purposes. Around the world we have many languages and how does a computer understand human language? Do computers have super powers like the Avengers? No, Not at all. For this there is a key called Programming language. In simple words, programming language is a tool used to do a job.

Then why do we have a number of programming languages? We have many programming languages because each and every programming language does different jobs. For example, To cook any sweet we can use sugar or jaggery. We can choose any one of them or both. Both are sweet but a slight difference in their taste varies the taste of the recipe. Similarly, we have various programming languages for various purposes.

In the view of understanding the capability of the computer, we generally have two types of languages. High-level language and Low-level language. High level language is human readable language which is similar to our normal language. Low level language is an understandable language of machines ( Binary language). Low level languages are assembly languages. In simple words Machine languages. Machines can understand only binary language that consists of 0's and 1's. Now comes the point.

A programming language is the language consisting of a set of instructions that produce some outputs. High level languages are nothing but C language, Javascript, PHP, Python, Ruby etc. But the first programming language is said to be FORTRAN. We write in these high level languages and then compile them with the help of some compilers. Compilers are nothing but which are used to convert high level language to low level language. Something tricky right? The code we write in any of these high level languages is first compiled and an executable file is obtained which is now understandable by computers.

So now we came to the conclusion that the computer is not multi-linguistic but it can understand only Binary language but every high level language can be converted into this language.

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Learn PHP - For Beginners

Learn PHP – For Beginners

Course: Learn PHP – For BeginnersLearn to create dynamic web applications using PHP Students learn to integrate client-server communication into web pages to create dynamic functionality using PHP. We start with the fundamentals, including PHP syntax and variable declaration. The course transitions into working with objects, arithmetic operators, conditional statements, loops, functions and…