PHP kód 2

<?php
    $db_connect = mysqli_connect('localhost', 'katalog', 'KatalogJanda123', 'produkty', 3306);

    function nazev() {
        $db_connect = mysqli_connect('localhost', 'katalog', 'KatalogJanda123', 'produkty', 3306);
        $db_data = mysqli_query($db_connect, 'SELECT * FROM siesta ORDER BY id');
        $id = mysqli_num_rows($db_data);

        echo '<tr>';
        while ($radek = mysqli_fetch_array($db_data))
        {
            $i = 0;
            $nazev = $radek['nazev'];
            echo "<th>$nazev</th>";
            $i++;

            if (!($i %2))
            {
                echo '</tr>';
            }
            if ($id > 2 and !($i %2) and $i > 2)
            {
                echo '<tr>';
            }
            if ($i == $id)
            {
                echo '</tr>';
            }
        }
    }

    function popis() {
        $db_connect = mysqli_connect('localhost', 'katalog', 'KatalogJanda123', 'produkty', 3306);
        $db_data = mysqli_query($db_connect, 'SELECT * FROM siesta ORDER BY id');
        $id = mysqli_num_rows($db_data);

        echo '<tr>';
        while ($radek = mysqli_fetch_array($db_data))
        {
            $i = 0;
            $popis = $radek['popis'];
            echo "<td>$popis</td>";
            $i++;

            if (!($i %2))
            {
                echo '</tr>';
            }
            if ($id>2 and !($i %2) and $i > 2)
            {
                echo '<tr>';
            }
            if ($i == $id)
            {
                echo '</tr>';
            }
        }
    }

    function tabulka() {
        echo '<table>';
        nazev();
        popis();
        echo '</table>';
    }

    if($db_connect)
    {
        tabulka();
    }
    else
    {
        echo 'Spojení s databází nebylo navázáno!';
        echo '<br />';
        echo 'Kontaktuje prosím administrátora na e-mail <a href="mailto:[email protected]">[email protected]</a> s chybovým hlášením.';
        echo 'Popis chyby: ', mysqli_connect_error();
        exit();
    }

    if ($db_connect)
        mysqli_close($db_connect);
?>