(this file looks weird/null -- not listing)"; return (false); } else { return (true); } } function fileExt ($inStr) { return strtoupper (end(explode('.',$inStr))); } function sizeinK($bytes) { $size = $bytes / 1024; if($size < 1024) { $size = number_format($size, 2); $size .= 'k'; } else { if ($size / 1024 < 1024) { $size = number_format($size / 1024, 2); $size .= 'mb'; } else if ($size / 1024 / 1024 < 1024) { $size = number_format($size / 1024 / 1024, 2); $size .= ' GB'; } } return $size; } ?>