блок отвечает за пролистування страниц статей
При нажатии на новую страницу ( 2,3,4,) Дублируется список страниц и оглавление
Какие тут могут быть ошибки

unction BookChapter() {

  if (isset($this->param['uid'])) { 

    $sql = 'select bc.name, bc.book_id, bc.id, b.is_short from '.$this->db_pref.'book_chapter bc, '.$this->db_pref.'book_title b where b.id = bc.book_id and uid='.intval($this->param['uid']);

    $this->DB->query('update '.$this->db_pref.'book_chapter set cnt=cnt+1 where uid='.intval($this->param['uid']));

  } else {

    $sql = 'select name, id, book_id from '.$this->db_pref.'book_chapter where '.

    'book_id='.intval($this->param['book_id']).' and id='.intval($this->param['chapter_id']);

    $this->DB->query('update '.$this->db_pref.'book_chapter set cnt=cnt+1 where '.

    'book_id='.intval($this->param['book_id']).' and id='.intval($this->param['chapter_id']));

  }

  //die($sql);

   $spam = $this->DB->select($sql);

  if ($spam[0]['is_short']==1) {

    $this->param['id'] = $spam[0]['book_id'];

    $out = '<style>li { display: inline;}</style>' . $this->BookItem();

  } else $out = '';

  $this->param['book_id'] = $spam[0]['book_id'];

  $this->param['chapter_id'] = $spam[0]['id'];

  $book = $this->DB->select('select ufu from '.$this->db_pref.'book_title where id='.intval($this->param['book_id']));

  $out .= '<h5>'.$spam[0]['name'].'</h1>'.

  '<p><a href="/'.($this->is_short==$this->page_id?'articles':'books').'/'.$book[0]['ufu'].'">Back</a></p>'.

  file_get_contents('../images/book/'.intval($this->param['book_id']).'/'.intval($this->param['ch apter_id']).'.html');

  if ($this->is_short == $this->page_id) {

    $this->param['id'] = $this->param['book_id'];

    $out = $this->BookItem().$out;

  }  

  return $out;

}

 

function BookItem() {

  $this->DB->query('update '.$this->db_pref.'book_title set cnt=cnt+1 where id='.intval($this->param['id']));

  $book = $this->DB->select('select * from '.$this->db_pref.'book_title where id = '.intval($this->param['id']));

  /*if ($book[0]['is_short']==1) {

    $spam = $this->DB->select('select ufu from '.$this->db_pref.'book_chapter where book_id = '.intval($this->param['id']).' order by id limit 1');

    header('Location: /books/'.$spam[0]['ufu']);

  }*/

  $this->smarty->assign('book_name', $book[0]['name']);

  $this->smarty->assign('book_cnt', $book[0]['cnt']);

  $this->smarty->assign('book_ufu', $book[0]['ufu']);

 

  $sql = 'select * from '.$this->db_pref.'book_chapter where book_id = '.

  intval($this->param['id']).' order by id';

  $spam = $this->DB->select($sql);

  for ($i=0, $j=count($spam); $i<$j; $i++) {

    $this->smarty->append($spam[$i]);

  }

  return $this->smarty->fetch('book_'.($this->is_short==$this->page_id?'article':$this->tmpl).' _item.html');

}

 

function BookList1() {

  $sql = 'select a.name as aname, b.id as bid, b.name as bname, b.cnt, b.ufu, b.is_short, (select ufu from '.$this->db_pref.'book_chapter bc where b.id=bc.book_id order by bc.id limit 1) as cufu from '.

  $this->db_pref.'book_title b, '.$this->db_pref.'book_author a '.

  'where a.id = b.author_id '.

  (isset($this->param['category_id'])?'and b.category_id='.intval($this->param['category_id']).' ':'').

  ($this->is_short==$this->page_id?'and is_short=1 ':' and (is_short=0 or is_short is null)').

  'order by cnt desc'.

  ($this->limit>0?' limit '.$this->limit:'');

 

  $spam = $this->DB->select($sql);

  for ($i=0, $j=count($spam); $i<$j; $i++) {

    //if ($spam[$i]['is_short']==1) $spam[$i]['ufu'] = $spam[$i]['cufu'];

    $spam[$i]['cnt'] = intval($spam[$i]['cnt']);

    $this->smarty->append($spam[$i]);

  }

  $this->smarty->assign('is_short', ($this->is_short-$this->page_id));

  return $this->smarty->fetch('book_'.$this->tmpl.'_list.html');

}

 

function BookList() {

  $sql = 'select a.name as aname, b.id as bid, b.name as bname, b.cnt, b.ufu from '.

  $this->db_pref.'book_title b, '.$this->db_pref.'book_author a '.

  'where a.id = b.author_id '.

  (isset($this->param['category_id'])?'and b.category_id='.intval($this->param['category_id']).' ':'').

  ($this->is_short==$this->page_id?'and is_short=1 ':' and (is_short=0 or is_short is null)').

  'order by cnt desc'.

  ($this->limit>0?' limit '.$this->limit:'');

 

  $spam = $this->DB->select($sql);

  for ($i=0, $j=count($spam); $i<$j; $i++) {

    $spam[$i]['cnt'] = intval($spam[$i]['cnt']);

    $this->smarty->append($spam[$i]);

  }

  $this->smarty->assign('is_short', ($this->is_short-$this->page_id));

  $out = $this->smarty->fetch('book_'.$this->tmpl.'_list.html');

 

  if ($this->is_short!=$this->page_id) {

    $smarty = new Smarty();

    $smarty->compile_check = true;

 

    $sql = 'select a.name as aname, b.id as bid, b.name as bname, b.cnt, b.ufu from '.

    $this->db_pref.'book_title b, '.$this->db_pref.'book_author a '.

    'where a.id = b.author_id '.

    (isset($this->param['category_id'])?'and b.category_id='.intval($this->param['category_id']).' ':'').

    ('and is_short=1 ').

    'order by cnt desc'.

    ($this->limit>0?' limit '.$this->limit:'');

    $spam = $this->DB->select($sql);

    for ($i=0, $j=count($spam); $i<$j; $i++) {

      $spam[$i]['cnt'] = intval($spam[$i]['cnt']);

      $smarty->append($spam[$i]);

    }

    $smarty->assign('is_short', 0);

    $smarty->assign('dont_head', 1);

    $out .= $smarty->fetch('book_'.$this->tmpl.'_short.html');

  }

 

  return $out;