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   1 <?php
   2 /*
   3 * Smarty plugin
   4 * -------------------------------------------------------------
   5 * Type:    modifier
   6 * Name:    fsize_format
   7 * Version:    0.2
   8 * Date:    2003-05-15
   9 * Author:    Joscha Feth, joscha@feth.com
  10 * Purpose: formats a filesize (in bytes) to human-readable format
  11 * Usage:    In the template, use
  12             {$filesize|fsize_format}    =>    123.45 B|KB|MB|GB|TB
  13             or
  14             {$filesize|fsize_format:"MB"}    =>    123.45 MB
  15             or
  16             {$filesize|fsize_format:"TB":4}    =>    0.0012 TB
  17 * Params:
  18         int        size            the filesize in bytes
  19         string    format            the format, the output shall be: B, KB, MB, GB or TB
  20         int        precision        the rounding precision
  21         string    dec_point        the decimal separator
  22         string    thousands_sep    the thousands separator
  23 * Install: Drop into the plugin directory
  24 * Version:
  25 *            2003-05-15    Version 0.2    - added dec_point and thousands_sep thanks to Thomas Brandl, tbrandl@barff.de
  26 *                                    - made format always uppercase
  27 *                                    - count sizes "on-the-fly"
  28 *            2003-02-21    Version 0.1    - initial release
  29 * -------------------------------------------------------------
  30 */
  31 function smarty_modifier_fsize_format($size,$format = '',$precision = 2, $dec_point = ".", $thousands_sep = ",")
  32 {
  33
  34     $format = strtoupper($format);
  35
  36     static $sizes = array();
  37
  38     if(!count($sizes)) {
  39         $b = 1024;
  40         $sizes["B"]        =    1;
  41         $sizes["KB"]    =    $sizes["B"]  * $b;
  42         $sizes["MB"]    =    $sizes["KB"] * $b;
  43         $sizes["GB"]    =    $sizes["MB"] * $b;
  44         $sizes["TB"]    =    $sizes["GB"] * $b;
  45
  46         $sizes = array_reverse($sizes,true);
  47     }
  48
  49     //~ get "human" filesize
  50     foreach($sizes    AS    $unit => $bytes) {
  51         if($size > $bytes || $unit == $format) {
  52             //~ return formatted size
  53             return    number_format($size / $bytes,$precision,$dec_point,$thousands_sep)." ".$unit;
  54         } //~ end if
  55     } //~ end foreach
  56 } //~ end function
  57 ?>
  58