包自动加载问题

Question

I'm struggling to work out how to correctly build and autoload my first composer package. I understand that if I follow the PSR-0 naming convention, autoloading should "just work". I am trying to set up with:

• vendor: Programster
• package name: CoreLibs

I have managed to debug a project that includes the package to the point where I am outputting the search path by putting a print in the findFileWithExtension() function of the ClassLoader.php file

/home/stuart/Desktop/test-project/vendor/Programster/CoreLibs/Programster/Programster/CoreLibs/Core.php

I know that the file is actually located at:

/home/stuart/Desktop/test-project/vendor/Programster/CoreLibs/Core.php

My Package's composer.json file:

{
    "name": "Programster/CoreLibs",
    "type": "library",
    "description": "Core libraries for PHP 5.3+",
    "keywords": ["core","library"],
    "homepage": "http://svn.yadda-yadda.com/php/core-libs",
    "license": "none",
    "authors": [
        {
            "name": "xxxx",
            "email": "[e-mail]",
            "homepage": "http://mywebsite.com/",
            "role": "Developer"
        }
    ],
    "require": {
        "php": ">=5.3.0"
    },
    "autoload": {
        "psr-0": {
            "Programster": "Programster"
        }
    }
}

The following is a tiny script in a project that includes the package to test if is working:

<?php

require_once(__DIR__ . '/../vendor/autoload.php');

$loader = new \Composer\Autoload\ClassLoader();
$loader->register();

use \Programster\CoreLibs as programster;
programster\Core::println("hello world");

The project's composer.json file to include the package:

{
    "repositories": [ { "type": "composer", "url": "http://satis.mydomain.com/" } ],
    "require": {
        "Programster/CoreLibs": "dev-trunk"
    }
}

Is my package's config wrong, or do I really need to create Programster/CoreLibs/ subdirectories within the CoreLibs repository source code?

Answer 1

I managed to get it working by using the PSR-4 standard that others suggested in the comments and updating my package's composer.json file (see the autoload section):

{
    "name": "Programster/CoreLibs",
    "type": "library",
    "description": "Core libraries for PHP 5.3+",
    "keywords": ["core","library"],
    "homepage": "http://svn.mydomain/core-libs",
    "license": "none",
    "authors": [
        {
            "name": "MY name",
            "email": "[e-mail]",
            "homepage": "http://my-website.com/",
            "role": "Developer"
        }
    ],
    "require": {
        "php": ">=5.3.0"
    },
    "autoload": {
        "psr-4": {
            "Programster\\CoreLibs\\": ""
        }
    }
}

This is my script in the project that has the package installed:

require_once(__DIR__ . '/../vendor/autoload.php');
\Programster\CoreLibs\Core::println("hello world");

@sectus was right, I did not need to use $loader = new \Composer\Autoload\ClassLoader();$loader->register();