PHP for Beginners Learn PHP by Building Real Projects

PHP for Beginners: Learn PHP by
Building Real Projects
Introduction
Welcome to PHP for Beginners!

This guide is designed for people with little or no programming experience. Instead of
learning endless theory, you'll learn PHP by creating real projects and practical examples.

By the end of this guide, you'll be able to:

 Understand how PHP works
 Create dynamic web pages
 Work with forms and user input
 Use variables, conditions, loops, and functions
 Connect PHP to HTML
 Build a fully functional calculator project
 Prepare for more advanced PHP topics and web development




Chapter 1: What is PHP?
PHP (Hypertext Preprocessor) is a server-side programming language used to create
dynamic websites and web applications.

Popular websites and systems built with PHP include:

 WordPress
 Facebook (originally)
 Moodle
 Drupal

Your First PHP Program
<?php
echo "Hello, World!";
?>

Explanation:

 <?php starts PHP code.
 echo displays text.
 ?> ends PHP code.

, Chapter 2: Variables
Variables store information.

<?php
$name = "John";
$age = 20;

echo $name;
?>

Explanation:

 $name stores text.
 $age stores a number.
 Variables always start with $.

Exercise:

Create variables for:

 Your name
 Your age
 Your favorite programming language




Chapter 3: User Input
HTML Form:

<form method="POST">
<input type="text" name="username">
<button type="submit">Send</button>
</form>

PHP:

<?php
echo $_POST['username'];
?>

Explanation:

 Forms collect data.
 POST sends data securely.
 PHP receives data using $_POST.