0)
{
$current_page = min($total_pages,$current_page) ;
}elseif ($current_page <0)
{
$current_page = max($current_page,-$total_pages);
$current_page = $total_pages + $current_page +1;
}else
{
$current_page = 1;
}
//if($total_pages ==0)$total_pages =1;
$this->offset = ($total_pages ==0)?0:($current_page -1) * $page_size;
$this->current_page=$current_page;
$this->total_rows = $total_rows;
$this->page_size = $page_size;
$this->total_pages = $total_pages;
}
function reset()
{
$total_pages =&$this->total_pages;
$current_page =&$this->current_page;
$page_size = &$this->page_size;
$total_rows = &$this ->total_rows;
$total_pages = ceil($total_rows / $page_size);
if ($current_page > 0)
{
$current_page = min($total_pages,$current_page) ;
}elseif ($current_page <0)
{
$current_page = max($current_page,-$total_pages);
$current_page = $total_pages + $current_page +1;
}else
{
$current_page = 1;
}
$this ->offset = ($current_page -1) * $page_size;
}
function get_query()
{
$t='';
foreach($_GET as $k => $v)
{
if ($k!='page')$t .= sprintf('%s=%s&',$k,$v);
}
$this->get = $t;
return($t);
}
function s_nav()
{
$total_pages =$this->total_pages;
$current_page =$this->current_page;
//$page_size = $this->page_size;
//$total_rows = $this ->total_rows;
if ($total_pages > 0)
{
$get = $this->get_query();
$j = ($current_page -$this->left)>0?$current_page -$this->left:1;
$temp = ($current_page>1)?sprintf('
第一页 上一页',$get,$get,$current_page-1):'';
for($i = $j; $i < $current_page ;$i++ )
{
$temp .= sprintf('
[%d]',$get,$i,$i) ;
}
$temp .= sprintf('
[%d]',$current_page);
$j = ($current_page + $this -> right)>$total_pages?$total_pages:($current_page + $this -> right);
for ($i = $current_page + 1 ;$i<= $j;$i++ )
{
$temp .= sprintf('
[%d]',$get,$i,$i);
}
$temp .= ($current_page==$total_pages)?'':sprintf('
下一页 最末页',$get,$current_page + 1,$get);
$temp .= sprintf( ' %d/%d页 %d条记录',$this->current_page,$this->total_pages,$this->total_rows);
}else{
$temp = '没有记录';
}
return $temp;
}
}
?>
//显示
s_nav(); ?>
