PHP Tutorial

Basic PHP Syntax

PHP files use the .php extension, like index.php or contact.php. Every PHP script starts with <?php and ends with ?>. Here’s a simple example:

<?php
echo "Hello, World!";
?>

Course Overview

Throughout this course, you will explore:

• PHP Basics: Understand variables, data types, and control structures.
• Functions: Learn how to create and use functions effectively.
• Arrays: Discover how to work with both indexed and associative arrays.
• Object-Oriented Programming: Get to grips with classes and objects.
• Database Interaction: Connect your PHP applications to databases for data storage and retrieval.
• Frameworks: Explore popular PHP frameworks like Laravel to accelerate your development process.

Why Learn PHP?

PHP powers millions of websites and applications worldwide. Whether you’re building an e-commerce platform, a CMS, or a social networking site, PHP is a reliable choice. This course is designed for both beginners and seasoned developers looking to enhance their skills and stay up-to-date with industry standards.

What You’ll Learn

1. Variables: Learn how to declare and use variables in PHP.
2. Data Types: Get familiar with the different data types available in PHP.
3. Control Structures: Understand how to control the flow of your applications with conditional statements and loops.
4. Functions: Discover how to create reusable code blocks with functions.
5. Working with Arrays: Learn how to manage collections of data using arrays.
6. Outputting Data: Use echo and print to display content to users.
7. Comments: Understand how to document your code effectively.

You may have heard about Backend and Frontend, PHP code can be used in both.

PHP in Backend

Below is an example of PHP handling backend logic to set and retrieve a variable:

<?php
// Backend processing example
$message = "Welcome to the PHP course!";
echo $message;
?>

PHP Rendering for the Frontend

PHP can also be used to render dynamic HTML content on the frontend:

<?php
$user = "Alice";
echo "<p>Hello, <strong>" . $user . "</strong>! Welcome back.</p>";
?>