opencart 分页

/system/library/pagination.php
这个分页类，不好使用
class Pagination {
public $total = 0;
public $page = 1;
public $limit = 20;
public $num_links = 10;
public $url = '';
public $text = 'Showing {start} to {end} of {total} ({pages} Pages)';
public $text_first = '|<';
public $text_last = '>|';
public $text_next = '>';
public $text_prev = '<';
public $style_links = 'links';
public $style_results = 'results';
 
public function render() {
  $total = $this->total;
 
  if ($this->page < 1) {
   $page = 1;
  } else {
   $page = $this->page;
  }
 
  if (!(int)$this->limit) {
   $limit = 10;
  } else {
   $limit = $this->limit;
  }
 
  $num_links = $this->num_links;
  $num_pages = ceil($total / $limit);
 
  $output = '';
 
  if ($page > 1) {
   $output .= ' ' . $this->text_first . ' ' . $this->text_prev . ' ';
     }else{
   $output .= '

' . $this->text_first . '

' . $this->text_prev . ' ';
  }

  if ($num_pages > 1) {
   if ($num_pages <= $num_links) {
    $start = 1;
    $end = $num_pages;
   } else {
    $start = $page - floor($num_links / 2);
    $end = $page + floor($num_links / 2);
  
    if ($start < 1) {
     $end += abs($start) + 1;
     $start = 1;
    }
     
    if ($end > $num_pages) {
     $start -= ($end - $num_pages);
     $end = $num_pages;
    }
   }

   if ($start > 1) {
    $output .= ' .... ';
   }

   for ($i = $start; $i <= $end; $i++) {
    if ($page == $i) {
     $output .= ' ' . $i . ' ';
    } else {
     $output .= ' ' . $i . ' ';
    }
   }
      
   if ($end < $num_pages) {
    $output .= ' .... ';
   }
  }
 
     if ($page < $num_pages) {
   $output .= ' ' . $this->text_next . ' ' . $this->text_last . ' ';
  }else{
   $output .= '

' . $this->text_next . '

' . $this->text_last . ' ';
  }
 
  $find = array(
   '{start}',
   '{end}',
   '{total}',
   '{pages}'
  );
 
  $replace = array(
   ($total) ? (($page - 1) * $limit) + 1 : 0,
   ((($page - 1) * $limit) > ($total - $limit)) ? $total : ((($page - 1) * $limit) + $limit),
   $total,
   $num_pages
  );
 
  //return ($output ? '' : '') ;
       return ($total > $limit ? '' : '') ;
}
}
?>