/**
* Get the singleton instance
* @return Loader
*/
public static function instance()
{
if (self::$instance == null) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Unset the default registry instance.
* Primarily used in tearDown() in unit tests.
*
* @access public
* @return void
*/
public static function _unsetInstance()
{
self::$_oRegistry = null;
}