* 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 = array( 'b', 'Kb', 'Mb', 'Gb', 'Tb', 'Pb', 'Eb', 'Zb', 'Yb'); $power = $size > 0 ? floor(log($size, 1024)) : 0; return number_format($size / (1024 ** $power), 2, '.', ',') . $units[$power]; }