init_autoloader.php

<?php
/**
 * This source file is part of GotCms.
 *
 * GotCms is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * GotCms is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with GotCms. If not, see <http://www.gnu.org/licenses/lgpl-3.0.html>.
 *
 * PHP Version >=5.3
 *
 * @category Gc_Application
 * @package  Config
 * @author   Pierre Rambaud (GoT) <pierre.rambaud86@gmail.com>
 * @license  GNU/LGPL http://www.gnu.org/licenses/lgpl-3.0.html
 * @link     http://www.got-cms.com
 */

define('GC_APPLICATION_PATH', getcwd());
define('GC_PUBLIC_PATH', GC_APPLICATION_PATH . '/' . basename($_SERVER['DOCUMENT_ROOT']));
define('GC_MEDIA_PATH', GC_PUBLIC_PATH . '/media');
define('GC_TEMPLATE_PATH', GC_APPLICATION_PATH . '/module/Development/views');

// Composer autoloading
if (file_exists('vendor/autoload.php')) {
    $loader = include 'vendor/autoload.php';
}

$zfPath = false;

if (getenv('ZF2_PATH')) { // Support for ZF2_PATH environment variable or git submodule
    $zfPath = getenv('ZF2_PATH');
} elseif (get_cfg_var('zf2_path')) { // Support for zf2_path directive value
    $zfPath = get_cfg_var('zf2_path');
} elseif (is_dir('vendor/Zend')) {
    $zfPath = 'vendor';
}

if ($zfPath) {
    // Get application stack configuration
    $configuration = include 'config/application.config.php';
    if (isset($loader)) {
        $loader->add('Zend', $zfPath);
        foreach ($configuration['autoloader']['namespaces'] as $name => $path) {
            $loader->add($name, dirname($path));
        }

        $loader->register();
    } else {
        include $zfPath . '/Zend/Loader/AutoloaderFactory.php';
        Zend\Loader\AutoloaderFactory::factory(
            array(
                'Zend\Loader\StandardAutoloader' => $configuration['autoloader'],
            )
        );
    }
}

if (!class_exists('Zend\Loader\AutoloaderFactory')) {
    throw new RuntimeException(
        'Unable to load ZF2. Run `php composer.phar install` ' .
        'or define a ZF2_PATH environment variable.'
    );
}