<?php 
/** 
 * CodeIgniter 
 * 
 * An open source application development framework for PHP 
 * 
 * This content is released under the MIT License (MIT) 
 * 
 * Copyright (c) 2014 - 2018, British Columbia Institute of Technology 
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy 
 * of this software and associated documentation files (the "Software"), to deal 
 * in the Software without restriction, including without limitation the rights 
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
 * copies of the Software, and to permit persons to whom the Software is 
 * furnished to do so, subject to the following conditions: 
 * 
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software. 
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
 * THE SOFTWARE. 
 * 
 * @package    CodeIgniter 
 * @author    EllisLab Dev Team 
 * @copyright    Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) 
 * @copyright    Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/) 
 * @license    http://opensource.org/licenses/MIT    MIT License 
 * @link    https://codeigniter.com 
 * @since    Version 1.0.0 
 * @filesource 
 */ 
defined('BASEPATH') OR exit('No direct script access allowed'); 
 
/** 
 * CodeIgniter Number Helpers 
 * 
 * @package        CodeIgniter 
 * @subpackage    Helpers 
 * @category    Helpers 
 * @author        EllisLab Dev Team 
 * @link        https://codeigniter.com/user_guide/helpers/number_helper.html 
 */ 
 
// ------------------------------------------------------------------------ 
 
if (!function_exists('byte_format')) { 
    /** 
     * Formats a numbers as bytes, based on size, and adds the appropriate suffix 
     * 
     * @param    mixed    will be cast as int 
     * @param    int 
     * @return    string 
     */ 
    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; 
    } 
} 
 
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