How to display Currency in Indian Numbering Format in PHP

Question

I have a question about formatting the Rupee currency (Indian Rupee - INR).

For example, numbers here are represented as:

1
10
100
1,000
10,000
1,00,00         


        

Answer 1

When money_format is not available :

function format($amount): string
{
    list ($number, $decimal) = explode('.', sprintf('%.2f', floatval($amount)));

    $sign = $number < 0 ? '-' : '';

    $number = abs($number);

    for ($i = 3; $i < strlen($number); $i += 3)
    {
        $number = substr_replace($number, ',', -$i, 0);
    }

    return $sign . $number . '.' . $decimal;

}