PHP Introduction

What is PHP?

PHP is a widely used, open source scripting language for building server-side web applications. A PHP file runs on the server, generates HTML, and sends the result to the browser.

That makes PHP useful when the page content depends on data, user login state, form submissions, or database records.

Why Learn PHP?

• Web Development: PHP is specifically designed for server-side web development.
• Database Integration: It seamlessly integrates with databases like MySQL.
• Easy to Learn: PHP is known for having a gentle learning curve for beginners.
• Huge Ecosystem: It powers major platforms like WordPress, which runs a large portion of the internet.

Common PHP Use Cases

• Building login and registration systems.
• Processing contact forms and checkout flows.
• Reading and saving data in databases.
• Generating pages dynamically from templates.

First PHP Example

<?php
$name = "IntricateDevo";
echo "Welcome to $name!";
?>

The code above runs on the server. The user only sees the final output, not the PHP source code itself.

Things To Remember

• PHP code usually lives inside <?php ... ?> tags.
• Variables start with $, such as $name or $email.
• PHP is often paired with HTML and a database.
• Good PHP pages still need clear structure, secure input handling, and readable output.

What To Learn Next

If you are just starting out, the best next step is learning how to install PHP locally and run your first script. After that, move on to variables, forms, and database basics.