<?php
function getBookTable()
{
    echo "<table class='book-table' cellspacing='0'>";
    $dbh = new PDO('mysql:host=localhost;dbname=baza', 'root', '');
    $sql = 'SELECT * from books';
    $response = $dbh->query($sql);
    foreach ($response as $row) {
        echo "<tr>
        <td>$row[0]</td>
        <td>$row[1]</td>
        <td>$row[2]</td>
        <td>$row[3]</td>
        <td> <button onclick='deleteEntry($row[0])' >Usuń wpis</button></td>
        </tr>";
    }
    echo "</table>";

    echo "<nav aria-label=\"Page navigation\">
          <ul class=\"pagination\">
            <li>
              <a href=\"#\" aria-label=\"Previous\">
                <span aria-hidden=\"true\">&laquo;</span>
              </a>
            </li>";

    $entriesCount = $response->columnCount();

    for($i = 0; $i < $entriesCount; $i++) {
        echo "<li><a onclick='getPage($i)'>$i</a></li>";
    }

    echo "<li>
              <a href=\"#\" aria-label=\"Next\">
                <span aria-hidden=\"true\">&raquo;</span>
              </a>
            </li>
          </ul>
        </nav>";
}
?>