<?php
                    $a = 1; /////a
                    $b = 1; /////b

                    for($i=0;$i<=15;$i++) {
                    if(!$i==0) {
                    $wynik = (($b)/($a));
                    $zapis = number_format($wynik, 10, '.', ' ');
                        echo '<tr>
                            <td>'.$i.'</td>
                            <td>'.$a.'</td>
                            <td>'.$b.' / '.$a.'</td>
                            <td>'.$zapis.'</td>
                            </tr>';
                        $c = $a;
                        $a = $b;
                        $b += $c;

                        }

                    }
                    echo '</tbody></table></div><div class="alert alert-success text-center"><strong>L=</strong>'.$wynik.'</div>';