yii\helpers\BaseInflector::ordinalize PHP Метод

    public static function ordinalize($number)
    {
        if (in_array($number % 100, range(11, 13))) {
            return $number . 'th';
        }
        switch ($number % 10) {
            case 1:
                return $number . 'st';
            case 2:
                return $number . 'nd';
            case 3:
                return $number . 'rd';
            default:
                return $number . 'th';
        }
    }