src/PhpPresentation/Autoloader.php
<?php
/**
* This file is part of PHPPresentation - A pure PHP library for reading and writing
* presentations documents.
*
* PHPPresentation is free software distributed under the terms of the GNU Lesser
* General Public License version 3 as published by the Free Software Foundation.
*
* For the full copyright and license information, please read the LICENSE
* file that was distributed with this source code. For the full list of
* contributors, visit https://github.com/PHPOffice/PHPPresentation/contributors.
*
* @see https://github.com/PHPOffice/PHPPresentation
*
* @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3
*/
declare(strict_types=1);
namespace PhpOffice\PhpPresentation;
/**
* Autoloader.
*/
class Autoloader
{
/** @const string */
public const NAMESPACE_PREFIX = 'PhpOffice\\PhpPresentation\\';
/**
* Register.
*/
public static function register(): void
{
spl_autoload_register([new self(), 'autoload']);
}
/**
* Autoload.
*/
public static function autoload(string $class): void
{
$prefixLength = strlen(self::NAMESPACE_PREFIX);
if (0 === strncmp(self::NAMESPACE_PREFIX, $class, $prefixLength)) {
$file = str_replace('\\', DIRECTORY_SEPARATOR, substr($class, $prefixLength));
$file = realpath(__DIR__ . (empty($file) ? '' : DIRECTORY_SEPARATOR) . $file . '.php');
if (!$file) {
return;
}
if (file_exists($file)) {
/** @noinspection PhpIncludeInspection Dynamic includes */
require_once $file;
}
}
}
}