Introduction to PHP for Beginners
PHP is one of the easiest and most popular languages for building dynamic websites, which makes it a perfect starting point if you're learning PHP for beginners. In this first lesson you'll learn what PHP is, what you can build with it, how it runs on a server, and you'll write your very first PHP script.What is PHP?
PHP (a recursive acronym for "PHP: Hypertext Preprocessor") is a free, open-source, server-side scripting language. "Server-side" means the code runs on the web server ā not in the visitor's browser ā and produces plain HTML that gets sent to the browser. PHP powers a huge part of the web, including WordPress and frameworks like Laravel.
What can you build with PHP?
- Dynamic websites and blogs
- Login systems and user dashboards
- E-commerce stores and REST APIs
- Anything that talks to a database (usually MySQL)
How PHP works (server-side)
When a visitor opens a .php page:
- The browser requests the page from the server.
- The server runs your PHP code.
- PHP produces plain HTML.
- The server sends that HTML back to the browser.
The visitor never sees your PHP code ā only the final result.
Your first PHP script
Create a file called index.php:
<?php Ā echo "Hello, World!"; ?>
Open it in your browser through a PHP server and you'll see Hello, World!
- <?php ... ?> tells the server "this part is PHP".
- echo outputs text to the page.
What you need to start
- A local server: XAMPP (Windows) or MAMP (Mac) ā both include PHP + MySQL.
- A code editor like VS Code or PhpStorm.
What's next
In the next lesson, PHP Basics, you'll learn PHP syntax, variables, and data types ā then we'll move on to OOP, forms, and connecting to MySQL.
That's the big picture. Throughout this PHP for beginners series you'll move from these basics to building real, database-driven web pages, one step at a time.
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