<select name="selectlink">
                                        <option value = "<?php
                                        $dbc = mysqli_connect(DB_HOST,DB_USER,DB_PASSWORD,DB_NAME);
                                        $query = "SELECT id FROM done_add";
                                        $data = mysqli_query($dbc, $query);
                                        $array=[];
                                        while ($row = mysqli_fetch_array($data)) {
                                            $array = $row['id'];
                                        }
                                        ?>"> <?php print($array); ?></option>
                                    </select>