Variety of nouns with numbers

Hello again,

I am rather a detail-oriented person and during the translation of whole page into Polish I have found something which doesn’t make me happy :)
The problem concerns Polish language (maybe some other Slavic languages as well) and our different plural forms of the noun.
In English it’s simple:
1 comment, review,
0 and 2-∞ comments, reviews.

But Polish language does not coddle us too much, so we have different word endings depending on the number. I know that what I am asking for is rather strange, but as I said I am a detail-oriented person so … is there any chance to extend the PHP code allowing to use a better translation. In my opinion if we succeed it might be also something profitable for you in the future!

A colleague of mine has prepared a logical base of such change I do hope it will be somehow helpful, but the only problem is where to put it on :)

Here comes that code:

                                // Rules for first 19 numbers
                                
                                if ($comments_count <= 19) {
                                    
                                    if ($comments_count > 4 || $comments_count === 0) { // set of numbers 5 to 19
                                        $comments_text = __('% comments', 'textdomain'); // in Polish komentarzy
                                    } elseif (in_array($comments_count, array(2, 3, 4))) { // set of numbers 2, 3, 4
                                        $comments_text = __('% comments', 'textdomain'); // in Polish komentarze
                                    } else { // the rest, which is for 1 (for singular form)
                                        $comments_text = __('% comment', 'textdomain'); // in Polish komentarz
                                    }
                                } else { // rules for numbers bigger than 20
                                    $last_char = substr((string) $comments_count, -1, 1); // it gives last digit of string

                                    if (in_array((int) $last_char, array(0, 1, 5, 6, 7, 8, 9))) { // end digit 0, 1, 5, 6, 7, 8, 9
                                        $comments_text = __('% comments', 'textdomain'); // in Polish komentarzy
                                    } elseif (in_array((int) $last_char, array(2, 3, 4))) { // end digit 2, 3, 4
                                        $comments_text = __('% comments', 'textdomain'); // in Polish komentarze
                                    }
                                }

I know that further translation into Polish would require a lot of tries, but this I think I can easily manage myself.

Thank you for considering my request.

Best regards,
Leszek