PHP library for Twitter OAuth protocol

<?php
namespace OAuth\Common;
/**
 * @author ieter Hordijk <info@pieterhordijk.com>
 */
class AutoLoader
{
    /**
     * @var string The namespace prefix for this instance.
     */
    protected $namespace = '';
    /**
     * @var string The filesystem prefix to use for this instance
     */
    protected $path = '';
    /**
     * Build the instance of the autoloader
     *
     * @param string $namespace The prefixed namespace this instance will load
     * @param string $path      The filesystem path to the root of the namespace
     */
    public function __construct($namespace, $path)
    {
        $this->namespace = ltrim($namespace, '\');
        $this->path      = rtrim($path, '/\') . DIRECTORY_SEPARATOR;
    }

OAUTH protocol provides a secure, open and simple standard for user resource authorization. At the same time, any third party can use the OAUTH authentication service, and any service provider can implement its own OAUTH authentication service, so OAUTH is open. The industry provides multiple implementations of OAUTH, such as PHP, JavaScript, Java, Ruby and other language development kits, which greatly saves programmers' time, so OAUTH is simple. Many Internet services such as Open API, and many large companies such as Google, Yahoo, Microsoft, etc. provide OAUTH authentication services. These are enough to show that the OAUTH standard has gradually become the standard for open resource authorization.