<?php

/**
 * Smarty plugin.
 */

/**
 * Smarty filesize modifier plugin.
 *
 * Type:     modifier
 * Name:     filesize
 * Purpose:  show the filesize of a file in kb, mb, gb etc...
 *
 * @param string $
 *
 * @return string
 */
function smarty_modifier_filesize($size)
{
    $size = max(0, (int) $size);
    $units = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
    $power = $size > 0 ? floor(log($size, 1024)) : 0;

    return number_format($size / pow(1024, $power), 2, '.', ',').' '.$units[$power];
}