How to display Currency in Indian Numbering Format in PHP?

echo 'Rs. '.IND_money_format(1234567890);

function IND_money_format($money){
    $len = strlen($money);
    $m = '';
    $money = strrev($money);
    for($i=0;$i<$len;$i++){
        if(( $i==3 || ($i>3 && ($i-1)%2==0) )&& $i!=$len){
            $m .=',';
        }
        $m .=$money[$i];
    }
    return strrev($m);
}

NOTE:: it is not tested on float values and it suitable for only Integer

$num = 1234567890.123;

$num = preg_replace("/(\d+?)(?=(\d\d)+(\d)(?!\d))(\.\d+)?/i", "$1,", $num);

echo $num;

// Input : 1234567890.123

// Output : 1,23,45,67,890.123


// Input : -1234567890.123

// Output : -1,23,45,67,890.123

You have so many options but money_format can do the trick for you.

Example:

$amount = '100000';
setlocale(LC_MONETARY, 'en_IN');
$amount = money_format('%!i', $amount);
echo $amount;

Output:

1,00,000.00

Note:

The function money_format() is only defined if the system has strfmon capabilities. For example, Windows does not, so money_format() is undefined in Windows.

Pure PHP Implementation - Works on any system:

$amount = '10000034000';
$amount = moneyFormatIndia( $amount );
echo $amount;

function moneyFormatIndia($num) {
    $explrestunits = "" ;
    if(strlen($num)>3) {
        $lastthree = substr($num, strlen($num)-3, strlen($num));
        $restunits = substr($num, 0, strlen($num)-3); // extracts the last three digits
        $restunits = (strlen($restunits)%2 == 1)?"0".$restunits:$restunits; // explodes the remaining digits in 2's formats, adds a zero in the beginning to maintain the 2's grouping.
        $expunit = str_split($restunits, 2);
        for($i=0; $i<sizeof($expunit); $i++) {
            // creates each of the 2's group and adds a comma to the end
            if($i==0) {
                $explrestunits .= (int)$expunit[$i].","; // if is first value , convert into integer
            } else {
                $explrestunits .= $expunit[$i].",";
            }
        }
        $thecash = $explrestunits.$lastthree;
    } else {
        $thecash = $num;
    }
    return $thecash; // writes the final format where $currency is the currency symbol.
}