PHP Tutorial #1: Introduction to PHP

Welcome to the first lesson of our Backend Development Series. If you want to build dynamic websites like Facebook or WordPress, PHP is the language you need to master.

1. What is PHP?

PHP (Hypertext Preprocessor) is a widely-used, open-source server-side scripting language. Unlike JavaScript, which mostly runs in the browser (client-side), PHP runs on the Server.

Server-Side: The code is executed on the server, and the result is sent to the user as plain HTML.
Database Integration: PHP is excellent at connecting with databases like MySQL.
Open Source: It is free to use and has a massive global community.

2. Why Learn PHP in 2026?

Despite many new languages, PHP remains a giant in the tech world:

WordPress: Powers over 40% of the web and is built on PHP.
Easy to Learn: It has a logical syntax for beginners.
Fast Deployment: Most hosting services are optimized for PHP.

3. Setting Up Your Environment

Since PHP runs on a server, you need a local server environment on your computer. We recommend:

XAMPP: (Windows, Linux, Mac) - Includes Apache server and MySQL.
VS Code: Our preferred code editor.

4. Your First PHP Script

Create a file named index.php and write the following code:


<?php
  // This is a PHP comment
  echo "Hello, Spider Cyber Team!";
  
  $title = "Backend Mastery";
  echo "<h2>Welcome to " . $title . "</h2>";
?>

Conclusion

You have just taken your first step into server-side programming. In the next lesson, we will explore PHP Syntax and Variables.

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PHP Tutorial #1: Introduction to PHP and Environment Setup