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 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 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 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 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 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 SQL injection is one of the most common security vulnerabilities in PHP applications. If not handled properly, attackers can access or modify your database. In this tutorial, you’ll learn how to prevent SQL injection in PHP using prepared statements with simple and practical examples. WHAT YOU’LL LEARN What is SQL Injection? SQL Injection happens…