Zendcasts: PHAR out autoloading

Dates.php

<?php
namespace Zendcasts;
class Dates {
	public static function next_week()
	{
		$datetime = new \DateTime();
		$datetime->add(new \DateInterval('P7D'));
		return $datetime->format('Y-m-d');
	}
}

my_app.php

<?php
require_once 'phar://Zendcasts.phar';

$str = new Zendcasts\Strings();
echo $str->reverseMe("hello world") . "\n";

echo "hello \n Next week is " . Zendcasts\Dates::next_week() . "\n";

pharbuilder.php

<?php
$phar = new Phar('Zendcasts.phar');
$phar->buildFromDirectory(dirname(__FILE__) . '/Zendcasts','/\.php$/');
$phar->compressFiles( Phar::GZ);
$phar->stopBuffering();
$phar->setStub($phar->createDefaultStub('stub.php'));

Strings.php

<?php
namespace Zendcasts;

class Strings
{
	public function reverseMe($str)
	{
		return implode('',array_reverse(str_split($str)));
	}
}

stub.php

<?php

function __autoload($name) {
	require_once './' . str_replace('\\',DIRECTORY_SEPARATOR,$name) . '.php';
}