A php function to convert a number into Indian Number System format (also Indian Currency Format)

IND_money_format.php

<?php
    function IND_money_format($number){    	
            $decimal = (string)($number - floor($number));
            $money = floor($number);
            $length = strlen($money);
            $delimiter = '';
            $money = strrev($money);
 
            for($i=0;$i<$length;$i++){
                if(( $i==3 || ($i>3 && ($i-1)%2==0) )&& $i!=$length){
                    $delimiter .=',';
                }
                $delimiter .=$money[$i];
            }
 
            $result = strrev($delimiter);
            $decimal = preg_replace("/0\./i", ".", $decimal);
            $decimal = substr($decimal, 0, 3);
 
            if( $decimal != '0'){
                $result = $result.$decimal;
            }
 
            return $result;
        }
?>

laravel_instructions.html

How to add this as a global helper function in laravel?

1 - Create a `Helpers` directory for your helper functions in the app directory 
    `mkdir app/Helpers' .

2 - Download the `Indian_currency_format.php` file and save it to Helpers directory.

3 - In your composer.json add the file to "files" attribute of autoload so that it can be loaded by composer using PSR-4 autoloading 
    (see https://getcomposer.org/doc/04-schema.md#psr-4), 

    like so:
            "autoload": {
                "classmap": [
                    "database/seeds",
                    "database/factories"
                 ],
                 "psr-4": {
                    "App\\": "app/"
                 },
                 "files": [
                    "app/Helpers/IND_money_format.php"
                 ]
            },

 4 - Finally run `composer dump-autoload` to refresh autoload cache.

The code gives an invalid output for an odd-digit negative number.
for eg. -96722 => -,96,722