Number to Word Convert Indian Currency in Php

<php
// Ref : https://stackoverflow.com/questions/45276116/number-to-words-conversion-indian-rupee-decimal-string-issue-in-php
// Indian Digit Rupees To Word

// Support Point After Two Digit Only
function convertNumberToIndianCurrency($number)
{
    $no = (int)floor($number);
    $point = (int)round(($number - $no) * 100);
    $hundred = null;
    $digits_1 = strlen($no);
    $i = 0;
    $str = array();
    $words = array('0' => '', '1' => 'one', '2' => 'two',
        '3' => 'three', '4' => 'four', '5' => 'five', '6' => 'six',
        '7' => 'seven', '8' => 'eight', '9' => 'nine',
        '10' => 'ten', '11' => 'eleven', '12' => 'twelve',
        '13' => 'thirteen', '14' => 'fourteen',
        '15' => 'fifteen', '16' => 'sixteen', '17' => 'seventeen',
        '18' => 'eighteen', '19' =>'nineteen', '20' => 'twenty',
        '30' => 'thirty', '40' => 'forty', '50' => 'fifty',
        '60' => 'sixty', '70' => 'seventy',
        '80' => 'eighty', '90' => 'ninety');
    $digits = array('', 'hundred', 'thousand', 'lakh', 'crore');

    while ($i < $digits_1)
    {
        $divider = ($i == 2) ? 10 : 100;
        $number = floor($no % $divider);
        $no = floor($no / $divider);
        $i += ($divider == 10) ? 1 : 2;
        if($number)
        {
            $plural = (($counter = count($str)) && $number > 9) ? 's' : null;
            $hundred = ($counter == 1 && $str[0]) ? '' : null;
            $str [] = ($number < 21) ? $words[$number] .
            " " . $digits[$counter] . $plural . " " . $hundred
            :
            $words[floor($number / 10) * 10]
            . " " . $words[$number % 10] . " "
            . $digits[$counter] . $plural . " " . $hundred;
        } else $str[] = null;
    }

    $str = array_reverse($str);
    $result = implode('', $str);

    if($point > 20) {
        $points = ($point) ?
        "" . $words[floor($point / 10) * 10] . " " .
        $words[$point = $point % 10] : '';
    }else{
        $points = $words[$point];
    }

    if($points != ''){
        echo ucwords($result) . "Rupees And " . ucwords($points) . " Paisa Only";
    }else{
        echo ucwords($result) . "Rupees Only";
    }
}

// Support Point After Two Digit Only :: https://3v4l.org/rFvbJ
function displaywords($number)
{
    $words = array('0' => '', '1' => 'one', '2' => 'two',
        '3' => 'three', '4' => 'four', '5' => 'five', '6' => 'six',
        '7' => 'seven', '8' => 'eight', '9' => 'nine',
        '10' => 'ten', '11' => 'eleven', '12' => 'twelve',
        '13' => 'thirteen', '14' => 'fourteen',
        '15' => 'fifteen', '16' => 'sixteen', '17' => 'seventeen',
        '18' => 'eighteen', '19' =>'nineteen', '20' => 'twenty',
        '30' => 'thirty', '40' => 'forty', '50' => 'fifty',
        '60' => 'sixty', '70' => 'seventy',
        '80' => 'eighty', '90' => 'ninety');
    $digits = array('', '', 'hundred', 'thousand', 'lakh', 'crore');

    $number = explode(".", $number);
    $result = array("","");
    $j =0;
    foreach($number as $val){
            // loop each part of number, right and left of dot
        for($i=0;$i<strlen($val);$i++){
                // look at each part of the number separately  [1] [5] [4] [2]  and  [5] [8]

                $numberpart = str_pad($val[$i], strlen($val)-$i, "0", STR_PAD_RIGHT); // make 1 => 1000, 5 => 500, 4 => 40 etc.
                if($numberpart <= 20){
                    $numberpart = 1*substr($val, $i,2);
                    $i++;
                    $result[$j] .= $words[$numberpart] ." ";
                }else{
                    //echo $numberpart . "<br>\n"; //debug
                    if($numberpart > 90){  // more than 90 and it needs a $digit.
                        $result[$j] .= $words[$val[$i]] . " " . $digits[strlen($numberpart)-1] . " ";
                    }else if($numberpart != 0){ // don't print zero
                    $result[$j] .= $words[str_pad($val[$i], strlen($val)-$i, "0", STR_PAD_RIGHT)] ." ";
                }
            }
        }
        $j++;
    }
    if(trim($result[0]) != "") echo $result[0] . "Rupees ";
    if($result[1] != "") echo 'AND '.$result[1] . "Paise";
    echo " Only";
}

?>