Autoloader

This is test autoloaders for psr-0 and psr-4 loading standards

The example contains:

1. Autoloading with Composer
2. Autoloading with symfony/class-loader component
3. __autoload function
4. Autoloding class implementation using spl_autoload

Autoloading with Composer

Add your source folder into composer.json autoload section

{
    "autoload": {
        "psr-0": {
            "": "src/"
        }
    }
}

Do not forget to include autoload.php

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

Autoloading with symfony/class-loader component

    $ cd path/to/your/project
    $ curl -Ss https://getcomposer.org/installer | php
    $ php composer.phar require symfony/class-loader

PSR-0

/**
 *  Symfony\SomeClass() ->  __DIR__/src/Symfony/SomeClass.php
 *  or if not found     ->  __DIR__/symfony/src/Symfony/SomeClass.php
 */
$loader->addPrefix('Symfony', array(
    __DIR__.'/src',
    __DIR__.'/symfony/src'
));

// register a prefix for a class following the PEAR naming conventions
$loader->addPrefix('Twig_', __DIR__.'/vendor/twig/twig/lib');

PSR-4

/**
 *  Symfony\SomeClass() ->  __DIR__/src/SomeClass.php
 */
$loader->addPrefix('Symfony', __DIR__.'/src');