PMA\libraries\File::setSelectedFromTblChangeRequest PHP Method

    public function setSelectedFromTblChangeRequest($key, $rownumber = null)
    {
        if (!empty($_REQUEST['fields_uploadlocal']['multi_edit'][$rownumber][$key]) && is_string($_REQUEST['fields_uploadlocal']['multi_edit'][$rownumber][$key])) {
            // ... whether with multiple rows ...
            return $this->setLocalSelectedFile($_REQUEST['fields_uploadlocal']['multi_edit'][$rownumber][$key]);
        } else {
            return false;
        }
    }