Contoh nampilin threaded/nested comment

// ini fungsi rekursif
function show_comment($comment)
{
    echo "<li>";
    echo $comment->isi;

    // $children = SELECT * FROM comments WHERE parent_id = $comment->id;
    // pokoknya ini ngitung jumlah children
    if(mysql_num_rows($children) > 0)
    {
        echo "<ol>";
        while($child = mysql_fetch_object($children))
        {
            show_comment($child);
        }
        echo "</ol>";
    }

    echo "</li>";
}

// mulai sini main loop
// $comments = SELECT * FROM comments WHERE post_id = $post_id AND parent_id = 0
echo "<ol>";
while($comment = mysql_fetch_object($comments))
{
    show_comment($comment)
}
echo "</ol">;