Loader Class

<?php

namespace System\Core;

class Loader
{
    private static $fileExtension = '.php';


    private static function autoload($className)
    {
        $fileName = '';
        $namespace = '';
        if (false !== ($lastNsPos = strripos($className, '\\'))) {
            $namespace = substr($className, 0, $lastNsPos);
            $className = substr($className, $lastNsPos + 1);
            $fileName = str_replace('\\', DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR;
        }
        $fileName .= str_replace('_', DIRECTORY_SEPARATOR, $className) . self::$fileExtension;

        try {
            include BASEPATH . $fileName;
        }
        catch (Exception $e) {
            echo 'Loader::autoload exception catched: ', $e->getMessage(), '<br><br>';
        }
    }

    public static function splRegister()
    {
        spl_autoload_register('self::autoload');
    }

    public static function splUnRegister()
    {
        spl_autoload_unregister('self::autoload');
    }
}