Convert Number to Text (FR)

number_to_string.php

<?php

function number_to_string($number): string
{
    $whole = floor($number);
    $decimal = bcsub($number, $whole, 2);

    $decimalPrefix = (-1 === bccomp($decimal, 0.1, 2)) ? 'zéro ' : '';

    $decimal = bcmul($decimal, 100, 2);

    $formatter = new NumberFormatter('fr_FR', NumberFormatter::SPELLOUT);

    if ('0.00' === $decimal) {
        return sprintf('%s Dirhams', $formatter->format($whole));
    }

    return sprintf(
        '%s Dirhams et %s%s Centimes',
        $formatter->format($whole),
        $decimalPrefix,
        $formatter->format($decimal)
    );
}

echo number_to_string(1500), "\n"; // mille cinq cents Dirhams
echo number_to_string(1200.99), "\n"; // mille deux cents Dirhams et quatre-vingt-dix-neuf Centimes