👀 Views: 1638 💬 Answers: 1 📅 Created: 2025-06-06

php composer autoload PHP

I can't seem to get I'm stuck on something that should probably be simple. I'm experiencing an scenario with autoloading classes using Composer in my PHP 8.1 project. I've defined a custom namespace structure in my `composer.json` file, but when I try to instantiate a class from that namespace, I get a `Class 'MyNamespace\MyClass' not found` behavior. My `composer.json` looks like this: ```json { "autoload": { "psr-4": { "MyNamespace\\": "src/MyNamespace/" } } } ``` I've run `composer dump-autoload` multiple times after making changes to my file structure, yet the behavior continues. The directory structure is as follows: ``` project-root/ ├── composer.json ├── src/ │ └── MyNamespace/ │ └── MyClass.php └── index.php ``` In `MyClass.php`, the class is defined as follows: ```php namespace MyNamespace; class MyClass { public function hello() { return 'Hello, World!'; } } ``` In my `index.php`, I try to include the Composer autoload file like this: ```php require 'vendor/autoload.php'; $instance = new MyNamespace\MyClass(); echo $instance->hello(); ``` Despite everything seeming correct, I still face the autoload scenario. I've triple-checked the namespace and file paths, and even cleared the Composer cache using `composer clear-cache`. Is there something I'm missing or a best practice for handling custom namespaces in Composer that I should be aware of? This is part of a larger service I'm building. Thanks in advance! My development environment is Ubuntu 20.04. Could this be a known issue?