History of PHP

Introduction

PHP has been part of the web for over three decades, which makes it one of the oldest server-side languages still in everyday use. Understanding where it came from helps explain why it looks the way it does today, and why certain features exist alongside much newer additions like union types and JIT compilation.

This lesson walks through PHP's history: its accidental origin as a personal scripting tool, the major version releases that reshaped it, how decisions about the language get made today, and where PHP stands in the current web development landscape.

The Birth of PHP

PHP was created in 1994 by a Danish-Canadian programmer named Rasmus Lerdorf. He was not trying to build a programming language — he was trying to track visits to his own online resume. To do that, he wrote a small set of Common Gateway Interface (CGI) programs in C, which he called "Personal Home Page Tools," or PHP Tools for short.

Other developers quickly noticed how useful these tools were for building simple dynamic pages, and Rasmus kept extending them. By 1995 he released "Personal Home Page Tools (PHP Tools) version 1.0" publicly, and the community around it began to grow far beyond his original resume-tracking use case.

From Tools to a Language

PHP did not start out as a proper programming language — it was a utility. As demand grew, it needed real language features: variables, loops, and a proper parser. In 1997, developers Andi Gutmans and Zeev Suraski rewrote the parsing engine from scratch, and this rewrite became the foundation of PHP 3, released in 1998.

This is also roughly when the name changed from "Personal Home Page Tools" to the recursive backronym "PHP: Hypertext Preprocessor" — a nod to the fact that it had grown into a genuine scripting language, not just a personal utility.

Major Version Milestones

PHP's history is easiest to follow through its major releases. Each one solved real problems developers were running into at the time.

Notice the gap between PHP 5 (2004) and PHP 7 (2015) — PHP 6 was attempted but never released as a stable version, so the community skipped straight to PHP 7 to avoid confusion with the abandoned project.

How PHP Is Governed

PHP is not controlled by a single company. It is developed by a core team of contributors and maintainers who collaborate openly, largely coordinated through the php.net website and its mailing lists.

New language features go through a formal RFC (Request for Comments) process: anyone can propose a change, the proposal is discussed publicly, and then core developers vote on whether to accept it. This is how features like union types, enums, and readonly properties were formally added to the language.

Where PHP Stands Today

Despite being over 30 years old, PHP still runs a remarkable share of the web. A large part of that is due to WordPress, which alone powers a huge percentage of all websites and is built entirely in PHP.

Beyond WordPress, modern frameworks like Laravel and Symfony have given PHP a contemporary developer experience — routing, dependency injection, ORM tools, and testing support — comparable to frameworks in other languages. Combined with the performance gains from PHP 7 and 8, PHP remains a practical, actively maintained choice for new projects, not just a legacy one.

Example: Modern PHP in Action

To see how far PHP has come, here is a small snippet using an enum and a readonly property — both features that did not exist before PHP 8.1.

<?php
enum Status
{
    case Draft;
    case Published;
}

class Article
{
    public function __construct(
        public readonly string $title,
        public readonly Status $status = Status::Draft
    ) {}
}

$post = new Article("PHP Through the Years", Status::Published);
echo "{$post->title} is currently {$post->status->name}.";

PHP Through the Years is currently Published.

Common Mistakes

Best Practices

Frequently Asked Questions

Key Takeaways

Summary

What started as a small personal utility in 1994 grew, through several major rewrites and releases, into one of the most widely deployed programming languages on the web. Each major version — 3, 5, 7, and 8 — solved a real problem of its era, from database support to object orientation to raw performance.

In this lesson, you traced PHP's history from Rasmus Lerdorf's original tools through the modern PHP 8.x era, and saw how the language is governed today. Next, you will look at why PHP remains a smart choice for developers in the present day.