自制一个小小的网站，其中一个功能总是有有关问题，求各位解答

	/**

	 * index.php MyLocalShop 入口

	 * 

	 * @copyright	(C)2013-2014 MyLocalShop

	 * @license		http://www.baidu.com/

	 * @lastmodify	2013-01-07

	 */

	



	/**

	 * 网站根目录路径

	 * @var string

	 */

	define('LOCALSHOP_PATH', dirname(__FILE__).DIRECTORY_SEPARATOR);

	//echo LOCALSHOP_PATH;

	

	require_once LOCALSHOP_PATH.'/base.php';

	$mls = new MLS();

	$mls->Load('front/includes/', 'dindex.phdp');  // 这是错误的，但为什么这里同样正确显示？

        $mls->Load('front/includes/', 'index.php');   // 这个才是真正文件名

?>

/**

 * 显示整个网站的目录树结构

 * @author Administrator

 *

 */

function dir_list() {

		return array(

			'admin' => array(

						'css',

						'images',

						'includes' => array(

										'libs'

						),

						'js'

			),

			'common' => array(

						'config' => array(

										'admin' => array(

													'config.php'

										),

										'front' => array(

													'config.php'

										),

										'config.php',

										'dir_list.php'

						),

						'includes' => array(

										'libs'

						),

						'js',

						'languages' => array(

										'en_US' => array(

													'admin' => array(

																'common.php'

													),

													'front' => array(

																'common.php'

													)

										),

										'zh_CN' => array(

													'admin' => array(

																'common.php'

													),

													'front' => array(

																'common.php'

													)

										)

						),

						'templates' => array(

										'Templates.php'

						)

			),

			'front' => array(

						'css',

						'images',

						'includes' => array(

										'libs'

						),

						'js'

			),

			//'base.php',

			//'index.php'

		);

}

?>

/**

 * MyLocalShop 框架入口

 * @author Administrator

 *

 */

	require_once LOCALSHOP_PATH.'/common/config/dir_list.php';

	

	class MLS {

		/**

		 * 私有函数。判断是否存在该目录或文件，有则返回true，无则返回false

		 * @param string $target	目录或文件

		 * @return 若判断为文件类型则返回"beFile"，若判断为目录类型则返回"beDir"；若既不是文件也不是目录则返回 false。

		 */

		private function hasDirectoryOrFile($target) {

			$dirs = MLS::load_all_directory();

			

			foreach ($dirs as $key => $value) {

			if (in_array($target, $value)) {

				$suffix = substr($target, -1, 4);

				if ($suffix === '.php')

				/*if (strrchr('.php', $target) || strrchr('.html', $target) || strrchr('.htm', $target) || strrchr('.xhtm', $target) ||

						strrchr('.xhtml', $target) || strrchr('.tpl', $target) || strrchr('.xml', $target) || strrchr('.xls', $target) ||