Title: PHP Commify Function
Submitter: Alvin Estevez (other recipes)
Last Updated: 2006/07/07
Version no: 1.4
Category: Text Processing and Rx

Description:

This function inserts a comma separator into every 3 digits. For example, 100000 will be 100,000.

Syntax:
commify(Number);

For Example:
commify (100000);
Output will be: $100,000

Source: Text Source

<?php

## Passing values to the commify() function
$number  = 100000;
$display_number = commify ($number);

## Display output
print "Input: $number" . "<br>"; 
print "Output: $display_number" . "<br>"; 

## The Commify Function
function commify ($str) { 
        $n = strlen($str); 
        if ($n <= 3) { 
                $return=$str;
        } 
        else { 
                $pre=substr($str,0,$n-3); 
                $post=substr($str,$n-3,3); 
                $pre=commify($pre); 
                $return="$pre,$post"; 
        }
        return($return); 
}

?>

Discussion:

This function can be used for financial, real estate, or any online reporting system where you want to make numbers more legible to the user.

Check out the dollarfy() function: http://aspn.activestate.com/ASPN/Cookbook/PHP/Recipe/202053

Courtesy of Alvin Estevez, Enigma Software Group, Inc.
http://www.enigmasoftwaregroup.com

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