/**
* Set path of system root directory and another directory
* application, config, output log, document root, library at the same time set
*
* @param string $path
* @return void
*/
public static function setSystemRoot($path)
{
self::$_systemDir = rtrim($path, '/');
self::setAppDirectory(self::$_systemDir . '/app');
self::setConfigDirectory(self::$_systemDir . '/configs');
self::setLogDirectory(self::$_systemDir . '/logs');
self::setHtdocsDirectory(self::$_systemDir . '/htdocs');
self::setLibraryDirectory(self::$_systemDir . '/library');
self::setDataDirectory(self::$_systemDir . '/data');
}