source: sourcecode/system/helpers/number_helper.php @ 1

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package             CodeIgniter
 * @author              ExpressionEngine Dev Team
 * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license             http://codeigniter.com/user_guide/license.html
 * @link                http://codeigniter.com
 * @since               Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------

/**
 * CodeIgniter Number Helpers
 *
 * @package             CodeIgniter
 * @subpackage  Helpers
 * @category    Helpers
 * @author              ExpressionEngine Dev Team
 * @link                http://codeigniter.com/user_guide/helpers/number_helper.html
 */

// ------------------------------------------------------------------------

/**
 * Formats a numbers as bytes, based on size, and adds the appropriate suffix
 *
 * @access      public
 * @param       mixed   // will be cast as int
 * @return      string
 */
if ( ! function_exists('byte_format'))
{
        function byte_format($num, $precision = 1)
        {
                $CI =& get_instance();
                $CI->lang->load('number');

                if ($num >= 1000000000000)
                {
                        $num = round($num / 1099511627776, $precision);
                        $unit = $CI->lang->line('terabyte_abbr');
                }
                elseif ($num >= 1000000000)
                {
                        $num = round($num / 1073741824, $precision);
                        $unit = $CI->lang->line('gigabyte_abbr');
                }
                elseif ($num >= 1000000)
                {
                        $num = round($num / 1048576, $precision);
                        $unit = $CI->lang->line('megabyte_abbr');
                }
                elseif ($num >= 1000)
                {
                        $num = round($num / 1024, $precision);
                        $unit = $CI->lang->line('kilobyte_abbr');
                }
                else
                {
                        $unit = $CI->lang->line('bytes');
                        return number_format($num).' '.$unit;
                }

                return number_format($num, $precision).' '.$unit;
        }
}


/* End of file number_helper.php */
/* Location: ./system/helpers/number_helper.php */