PHP in 2025: Where to Start for Beginners — A Step-by-Step Guide

Introduction to PHP: Where to Start in 2025

PHP is one of the most popular programming languages for web development, which continues to actively evolve. In 2025, it remains the core technology for creating dynamic websites and web applications. If you are thinking about starting to learn PHP, this article will be your starting point. We will break down what PHP is, how to install it, master the basic syntax, and write your first script. Let's go!

1. What is PHP and why learn it in 2025?

PHP (Hypertext Preprocessor) is a server-side scripting language designed for web development. Its code is executed on the server, and the result is sent to the user's browser as plain HTML. This allows you to create interactive websites that interact with databases, process forms, and manage sessions.

Why choose PHP in 2025:

• Widespread popularity: more than 75% of all websites in the world use PHP (including WordPress, Facebook, Wikipedia).
• Ease of entry: the syntax is intuitive, especially if you are already familiar with C-like languages.
• Large community: on Stack Overflow, GitHub, and forums there are thousands of ready-made solutions and libraries.
• Modern capabilities: PHP 8.x (and higher) includes strict typing, JIT compilation, attributes, and much more.
• Market demand: PHP developers are needed in web studios, startups, and large companies.

2. Installation and environment setup

To work with PHP, you will need a server environment. The easiest way for a beginner is to install a ready-made package XAMPP (or its analogues: OpenServer, MAMP, WAMP). It includes Apache (web server), PHP, MySQL, and phpMyAdmin.

Step-by-step instructions for Windows:

1. Download XAMPP from the official website.
2. Install the program, leaving all settings as default.
3. Launch the XAMPP Control Panel and click Start for Apache and MySQL.
4. Create a folder for your project in the directory C:\\xampp\\htdocs\\ (for example, my-first-php).
5. Open your browser and go to http://localhost/my-first-php/.

Checking the installation: Create a file index.php in the project folder with the following content:

<?phpphpinfo();?>

If you see a page with information about PHP — everything is working correctly.

3. PHP syntax basics

PHP code always starts with the tag <?php and can end with the tag ?> (the latter is not mandatory if there is no HTML after it). Let's look at the key constructs.

Variables and data types

Variables in PHP are declared using the dollar sign ($). The type is determined automatically:

<?php$name = "Anna";          // string$age = 25;               // integer$height = 1.68;          // floating point number$is_student = true;      // boolean value

echo "Hello, $name! You are $age years old.";?>

Conditional operators

The classic if-else construct:

<?php$score = 85;if ($score >= 90) {    echo "Excellent!";} elseif ($score >= 70) {    echo "Good.";} else {    echo "You need to improve your knowledge.";}?>

Loops

The most common are for and foreach:

<?php// for loopfor ($i = 1; $i <= 5; $i++) {    echo "Step number $i<br>";}

// foreach loop for an array$colors = ["red", "green", "blue"];foreach ($colors as $color) {    echo "Color: $color";