Complete guide to learn PHP from scratch in 2025

Learning a programming language can be a challenge, but PHP stands out as an ideal option for those starting in web development. This server-side programming language has been on the market for over two decades, and its popularity shows no signs of waning. Below, we will explore a comprehensive guide to help you embark on your PHP journey in 2025.

What is PHP?

PHP (Preprocessor Hypertext) is a widely used programming language for web development. It allows developers to create dynamic applications and interactive web pages. Its flexibility and the wide variety of available libraries make learning PHP a wise decision for any aspiring programmer.

Prerequisites for Learning PHP

Before starting with PHP, it’s advisable to have a basic understanding of HTML and some knowledge of how web applications work. Familiarizing yourself with programming basics, such as variables, control structures, and functions, will also be beneficial.

Setting Up the PHP Environment

To start programming in PHP, you first need to install a development environment. There are several popular packages that facilitate this task:

XAMPP

XAMPP is a free and open-source option that includes PHP, Apache, MySQL, and Perl. It is easy to install and use, making it an excellent choice for beginners.

MAMP

For Mac users, MAMP provides an environment similar to XAMPP. It comes with everything needed to start developing right away.

WAMP

WAMP is the ideal option for Windows users. It offers a complete development environment that includes PHP and MySQL.

Your First PHP Script

Once you have installed your preferred environment, it’s time to write your first script in PHP. Here’s a simple example:

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

Save this code in a file with the .php extension and run it on your local server. If everything is set up correctly, you will see "Hello, world!" in your browser.

Learning the Basics of PHP

Variables and Data Types

Variables in PHP are fundamental for storing and manipulating data. You can create variables by using the dollar sign $ followed by the variable name:

$nombre = "Juan";
$edad = 30;

Control Structures

Control structures like if, else, and switch allow developers to make decisions based on conditions. Here’s an example of an if structure:

if ($edad >= 18) {
    echo "You are of legal age.";
} else {
    echo "You are underage.";
}

Functions

Functions in PHP are reusable blocks of code. You can create a simple function as follows:

function greet($nombre) {
    return "Hello, " . $nombre;
}

echo greet("Luis");

Resources for Learning PHP

There are numerous resources available for learning PHP, including:

• Books: Many books cover PHP from basic to advanced topics.
• Online Courses: Platforms like Udemy, Coursera, or edX offer PHP courses that can be very helpful.
• Official Documentation: The PHP documentation is a comprehensive and detailed resource.

Conclusion

Learning PHP is an accessible and rewarding journey that will allow you to develop dynamic web applications. With dedication and the right resources, you can master this language in no time.

I invite you to keep exploring more news and resources related to programming on my blog. Your path to learning starts today!