Introduction When writing PHP code, not everything is meant for the computer. Sometimes, you need to leave notes for yourself or other developers — and that’s where comments come in. Comments are ignored by PHP during execution, but they play a very important role in writing clean and understandable code. In this tutorial, you will…
Introduction In dynamic websites, data doesn’t just get inserted and displayed — it also needs to be updated and sometimes deleted.For example, users may update their profile information, admins may edit product details, or old records may need to be removed from the database. In this tutorial, we’ll learn how to update and delete records…
Introduction Fetching data from a database is one of the most common tasks in PHP applications. Once data is stored in MySQL, PHP can retrieve and display it on web pages. This is how websites show user profiles, blog posts, product lists, and any dynamic content. In this tutorial, you’ll learn how to fetch data…
Introduction When users submit data from a website (like registration forms, contact forms, or feedback forms), that information needs to be stored somewhere. MySQL is commonly used to store such data in tables, and PHP is used to send the form data to the database.By inserting data into MySQL using PHP, you can save user…
Introduction To make PHP work with databases, we must connect PHP to MySQL.This connection allows PHP to insert, read, update, and delete data from a database. In this lesson, you’ll learn how to connect PHP with MySQL using mysqli. What Is mysqli? mysqli stands for MySQL Improved. It: ⚠️ Old mysql_* functions are deprecated and…
Introduction Before PHP can store or retrieve data, we need a database and tables.In this lesson, you’ll learn how to create a database and tables using phpMyAdmin without writing complex SQL. This method is ideal for beginners and shared hosting users. Prerequisites What Is phpMyAdmin Used For? phpMyAdmin allows you to: Most hosting providers include…
Introduction When building dynamic websites, we need a way to store, manage, and retrieve data.This is where databases come into play. In this lesson, we’ll understand: What Is a Database? A database is an organized collection of data stored electronically. Instead of saving data in files, databases allow you to: Examples of data stored in…
Introduction When working with files in PHP, security is extremely important. Incorrect file permissions can expose sensitive data, allow unauthorized access, and even lead to serious vulnerabilities. For example: In this tutorial, you will learn how file permissions work, how PHP handles them, and how to secure your files properly. What You Will Learn What…
Introduction Uploading files is a very common feature in PHP applications. Users often upload images, documents, PDFs, and other files through forms. For example: In this tutorial, you will learn how file upload works in PHP step by step, along with important security best practices. What You Will Learn How File Upload Works in PHP…
Introduction Writing data to files is a common requirement in PHP applications. Whether you are saving user input, storing logs, or generating reports, file writing is an essential backend skill. Think of writing files like editing a notebook: In this tutorial, you will learn how to write files in PHP step by step using simple…