README

A minimalistic PSR-4 autoloader implementation for PHP projects.

⚠️ Warning

This autoloader is intended for internal usage only. It is a simple implementation and not recommended for production environments. For production, consider using Composer's built-in autoloader.

This autoloader only concerns itself with your project’s classes.
It deliberately ignores everything living inside vendor/ because teaching it to navigate the endless maze of third-party packages would be a ton of work—and, well, I have a life.

Installation

You can install the package via composer:

composer require almostusable/psr4-autoloader

Usage

Configure your namespace mappings in composer.json:

{
  "autoload": {
    "psr-4": {
      "App\\": "src/"
    }
  }
}

Include the autoloader in your PHP script:

require 'vendor/almostusable/psr4-autoloader/autoloader.php';

// Now you can use classes from your namespaces
use App\Factory\RandomFactory;

$randomFactory = new RandomFactory();

Known Issues and Limitations

Basic Namespace Handling: The current implementation only checks the first segment of the namespace. This can cause issues with nested namespaces or similar prefixes.
Limited Error Handling: The composer.json parsing has minimal error handling.
Single Autoloading Standard: Only supports PSR-4, not other standards like PSR-0 or classmap.

Potential Improvements

Implement longest prefix matching for better namespace handling
Improve error handling for composer.json loading
Add support for multiple autoloading standards

almostusable / psr4-autoloader

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