Dependency Injection Without Pain: Symfony, Laravel, and Drupal Explained

Introduction

Dependency Injection (DI) is a cornerstone of modern PHP frameworks, but many developers—especially those coming from Drupal—find it confusing. Why inject services instead of calling them directly? How do DI containers differ between Drupal, Symfony, and Laravel?

In this article, we’ll break it down with practical examples, showing how to use DI without headaches across these three systems.

1. What is Dependency Injection?

Simply put:

One Feature, Three Approaches: Drupal Module vs Symfony vs Laravel

Feature Description

We will implement the same simple feature in all three systems:

User Registration Logger

When a new user registers, the system logs:

• user ID
• email
• registration time

Why this feature?

Because it:

Drupal Module Development vs Symfony and Laravel: How Modularity Really Works

Introduction

When developers talk about Drupal module development, they often assume that “modules” are a Drupal-only concept. However, modern PHP frameworks like Symfony and Laravel are also highly modular—just in different ways.

How to Build Reusable, Enterprise-Grade PHP Systems in 2026

Drupal, Symfony, and Laravel all live in the same PHP ecosystem — yet developing a Drupal module feels very different from building a Symfony or Laravel application.

This article explains: