PHP for Beginners in 2025: A Complete Guide to Getting Started

Introduction to PHP: Why is this language relevant in 2025?

PHP is a server-side programming language that has been the foundation for creating dynamic websites for over 25 years. In 2025, PHP continues to confidently hold leading positions: it powers giants like WordPress, Facebook (partially), Wikipedia, and more than 75% of all websites using server-side technologies. If you have decided to start your journey in web development, PHP is an excellent choice to begin with. It is easy to learn, has a huge community, and thousands of ready-made libraries.

In this article, we will break down where to start learning PHP in 2025: set up the environment, write your first script, get acquainted with the basics of syntax, learn to work with forms and databases. All code examples can be run immediately on your computer.

1. Installing and Setting Up the PHP Environment

Before writing code, you need to prepare a development environment. In 2025, the easiest way to start is to use ready-made packages that include PHP, a web server, and a database.

Recommended Tools

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• Open Server Panel — a popular package for Windows with Apache, PHP, MySQL, and phpMyAdmin.
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• XAMPP — a cross-platform solution for Windows, macOS, and Linux.
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• Docker — a modern approach with containers (for those who want to dive deeper into devops).
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After installing any of these packages, PHP will be available for running scripts. Verify the installation by creating a file info.php in the htdocs (or www) folder with the following content:

<?php\nphpinfo();\n?>

Start the server and open http://localhost/info.php in your browser. You will see a page with information about the PHP version and settings. If this happens, everything is ready to go.

2. PHP Syntax Basics: Variables, Data Types, Operators

PHP is a language with C-like syntax, but with some peculiarities. PHP code starts with <?php and ends with ?> (the closing tag is optional if there is no HTML after it).

Variables and Data Types

Variables in PHP start with a dollar sign $. Typing is dynamic — you don't need to specify the data type explicitly.

<?php\n$name = "Anna";          // string\n$age = 25;               // integer\n$height = 1.75;          // floating point number\n$isStudent = true;       // boolean value\n\necho "Hello, $name! You are $age years old.";\n?>

Basic Operators

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• Arithmetic: +, -, *, /, %
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• Comparison: ==, ===, !=, <, >
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• Logical: &&, ||, !
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• String concatenation: .
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Example of working with conditions and loops:

<?php\n$score = 85;\n\nif ($score >= 90) {\n    echo "Excellent!";\n} elseif ($score >= 70) {\n    echo "Good.";\n} else {\n    echo "You need to improve your knowledge.";\n}\n\n// For loop\nfor ($i = 1; $i <= 5; $i++) {\n    echo "Iteration #$i\\n";\n}\n?>

3. Working with Forms and Superglobals

One of the main tasks of PHP is processing data sent from HTML forms. The superglobal arrays $_GET and $_POST are used for this.

Simple Contact Form

Create a file form.php:

<!DOCTYPE html>\n<html>\n<head>\n    <title>Contact Form</title>\n</head>\n<body>\n    <form method="post" action="">\n        <label>Your name:</label>\n        <input type="text"