number to words but in French

[markussen33]

Body

Hello fellow developers!

I'd like to start a discussion on implementing a "number to words" functionality in French using PHP. The goal is to create a solution that converts numeric values into their corresponding words in French, for example, converting "123" to "cent vingt-trois".

This feature can be incredibly useful in various applications, such as generating invoices, writing out amounts in French on financial documents, or any scenario where numeric values need to be represented as words in French.

I believe it would be beneficial to discuss different approaches, algorithms , my biggest challange was to test all out put to the if they are grammartically correct , personaly i will share my code feel free to use it or you see an improvment can be done to it :

` public static function numberToWordsFrench($number) {

    $units = [
        0 => '',
        1 => 'un',
        2 => 'deux',
        3 => 'trois',
        4 => 'quatre',
        5 => 'cinq',
        6 => 'six',
        7 => 'sept',
        8 => 'huit',
        9 => 'neuf',
        10 => 'dix',
        11 => 'onze',
        12 => 'douze',
        13 => 'treize',
        14 => 'quatorze',
        15 => 'quinze',
        16 => 'seize',
        17 => 'dix-sept',
        18 => 'dix-huit',
        19 => 'dix-neuf',
        71 => 'soixante-onze',
        72 => 'soixante-douze',
        73 => 'soixante-treize',
        74 => 'soixante-quatorze',
        75 => 'soixante-quinze',
        76 => 'soixante-seize',
        91 => 'quatre-vingt-onze',
        92 => 'quatre-vingt-douze',
        93 => 'quatre-vingt-treize',
        94 => 'quatre-vingt-quatorze',
        95 => 'quatre-vingt-quinze',
        96 => 'quatre-vingt-seize'
    ];

    $tens = [
        2 => 'vingt',
        3 => 'trente',
        4 => 'quarante',
        5 => 'cinquante',
        6 => 'soixante',
        7 => 'soixante-dix',
        8 => 'quatre-vingt',
        9 => 'quatre-vingt-dix'
    ];

    $hundreds = [
        1 => 'cent',
        2 => 'deux cents',
        3 => 'trois cents',
        4 => 'quatre cents',
        5 => 'cinq cents',
        6 => 'six cents',
        7 => 'sept cents',
        8 => 'huit cents',
        9 => 'neuf cents'
    ];

    if ($number == 0) {
        return 'zéro';
    }

    $string = '';

    if ($number >= 1000000) {
        $string .= self::numberToWordsFrench(floor($number / 1000000)) . ' millions ';
        $number %= 1000000;
    }

    if ($number >= 1000) {
        if (floor($number / 1000) == 1) {
            $string .= 'mille ';
        } else {
            $string .= self::numberToWordsFrench(floor($number / 1000)) . ' mille ';
        }
        $number %= 1000;
    }

    if ($number >= 100) {
        // Handle hundreds
        $string .= $hundreds[$number / 100] . ' ';
        $number %= 100;
    }

    if ($number >= 20) {
        if  (($number >= 71 && $number <= 76) || ($number >= 91 && $number <= 96)){
            $string .= $units[$number] . ' ';
            $number = 0;
        }else{
            $string .= $tens[$number / 10] . ' ';
            $number %= 10;
        }
    }

    if ($number > 0) {
        $string .= $units[$number];
    }

    return trim($string);
}`

Guidelines

• I have read and understood this category's guidelines before making this post.

[niladri-1]

I think, this will help you,

public static function numberToWordsFrench($number) {
    $units = [
        0 => '',
        1 => 'un',
        2 => 'deux',
        3 => 'trois',
        4 => 'quatre',
        5 => 'cinq',
        6 => 'six',
        7 => 'sept',
        8 => 'huit',
        9 => 'neuf',
        10 => 'dix',
        11 => 'onze',
        12 => 'douze',
        13 => 'treize',
        14 => 'quatorze',
        15 => 'quinze',
        16 => 'seize',
        17 => 'dix-sept',
        18 => 'dix-huit',
        19 => 'dix-neuf',
        71 => 'soixante et onze',
        72 => 'soixante-douze',
        73 => 'soixante-treize',
        74 => 'soixante-quatorze',
        75 => 'soixante-quinze',
        76 => 'soixante-seize',
        91 => 'quatre-vingt-onze',
        92 => 'quatre-vingt-douze',
        93 => 'quatre-vingt-treize',
        94 => 'quatre-vingt-quatorze',
        95 => 'quatre-vingt-quinze',
        96 => 'quatre-vingt-seize'
    ];

    $tens = [
        2 => 'vingt',
        3 => 'trente',
        4 => 'quarante',
        5 => 'cinquante',
        6 => 'soixante',
        7 => 'soixante-dix',
        8 => 'quatre-vingts',
        9 => 'quatre-vingt-dix'
    ];

    $hundreds = [
        1 => 'cent',
        2 => 'deux cents',
        3 => 'trois cents',
        4 => 'quatre cents',
        5 => 'cinq cents',
        6 => 'six cents',
        7 => 'sept cents',
        8 => 'huit cents',
        9 => 'neuf cents'
    ];

    if ($number == 0) {
        return 'zéro';
    }

    $string = '';

    if ($number >= 1000000) {
        $string .= self::numberToWordsFrench(floor($number / 1000000)) . ' million ';
        $number %= 1000000;
    }

    if ($number >= 1000) {
        if (floor($number / 1000) == 1) {
            $string .= 'mille ';
        } else {
            $string .= self::numberToWordsFrench(floor($number / 1000)) . ' mille ';
        }
        $number %= 1000;
    }

    if ($number >= 100) {
        // Handle hundreds
        $string .= $hundreds[$number / 100] . ' ';
        $number %= 100;
    }

    if ($number >= 20) {
        if  (($number >= 71 && $number <= 76) || ($number >= 91 && $number <= 96)){
            $string .= $units[$number] . ' ';
            $number = 0;
        } else {
            $string .= $tens[floor($number / 10)] . ' ';
            $number %= 10;
        }
    }

    if ($number > 0) {
        $string .= $units[$number];
    }

    return trim($string);
}

Changes made:

1. Adjusted the values in the $units, $tens, and $hundreds arrays for grammatical correctness.
2. Updated the special cases in the $units array to include "soixante et onze" (seventy-one).
3. Modified the handling of tens in the $tens array to use "quatre-vingts" (eighty) instead of "quatre-vingt" (eighty) for consistency.
4. Added comments for clarity on each section of the code.
5. Ensured the return value is trimmed to remove any trailing whitespace.

These adjustments should make the output more grammatically correct in French. Feel free to test and let me know if you need further assistance!

[ebndev]

Hey @niladri-1! Thanks for being an active member of the Community 😁

@markussen33 let us know of the code above is helpful or if you're still encountering issues!

This sounds like a cool project btw!