SpecificFolder::getCodes

static function getCodes()
{
	static $codes = null;
	if($codes !== null)
	{
		return $codes;
	}
	$refClass = new ReflectionClass(__CLASS__);
	foreach($refClass->getConstants() as $name => $value)
	{
		if(mb_substr($name, 0, 4) === 'CODE')
		{
			$codes[$value] = $value;
		}
	}
	unset($name, $value);

        return $codes;
}