adodb和smarty分页类
By admin
- 2 minutes read - 303 wordsclass show_Pager
{
protected$_total; //记录总数
protected$pagesize; //每一页显示的记录数
public$pages; //总页数
protected$_cur_page; //当前页码
protected$offset; //记录偏移量
protected$pager_Links; //url连接
protected$pernum = 5; //页码偏移量，这里可随意更改
publicfunction __construct($total,$pagesize,$_cur_page)
{
$this->_total=$total;
$this->pagesize=$pagesize;
$this->_offset();
$this->_pager();
$this->cur_page($_cur_page);
$this->link();
}
publicfunction _pager()//计算总页数
{
return$this->pages = ceil($this->_total/$this->pagesize);
}
publicfunction cur_page($_cur_page) //设置页数
{
if (isset($_cur_page))
{
$this->_cur_page=intval($_cur_page);
}
else
{
$this->_cur_page=1; //设置为第一页
}
return$this->_cur_page;
}
//数据库记录偏移量
publicfunction _offset()
{
return$this->offset=$this->pagesize*($this->_cur_page-1);
}
//html连接的标签
publicfunction link()
{
if ($this->_cur_page == 1 && $this->pages>1)
{
//第一页
$this->pager_Links = "首 页 | 上一页 | .$PHP_SELF."?pager=".($this->_cur_page+1).">下一页 | .$PHP_SELF."?pager=$this->pages>尾 页";
}
elseif($this->_cur_page == $this->pages && $this->pages>1)
{
//最后一页
$this->pager_Links = ".$PHP_SELF."?pager=1>首 页 | .$PHP_SELF."?pager=".($this->_cur_page-1).">上一页 | 下一页 | 尾 页";
}
elseif ($this->_cur_page > 1 && $this->_cur_page <= $this->pages)
{
//中间
$this->pager_Links = ".$PHP_SELF."?pager=1>首 页 | .$PHP_SELF."?pager=".($this->_cur_page-1).">上一页 | .$PHP_SELF."?pager=".($this->_cur_page+1).">下一页 | .$PHP_SELF."?pager=$this->pages>尾 页";
}
return$this->pager_Links;
}
//html数字连接的标签
publicfunction num_link()
{
$setpage = $this->_cur_page ? ceil($this->_cur_page/$this->pernum) : 1;
$pagenum = ($this->pages > $this->pernum) ? $this->pernum : $this->pages;
if ($this->_total <= $this->pagesize) {
$text = ‘只有一页’;
} else {
$text = ‘页数:’.$this->pages.‘ ‘.$this->pagesize.‘个/页 ‘;
if ($this->_cur_page > 1) {
$text .= ‘[1]..’;
}
if ($setpage > 1) {
$lastsetid = ($setpage-1)*$this->pernum;
$text .= ‘.$lastsetid.‘>[<<]’;
}
if ($this->_cur_page > 1) {
$pre = $this->_cur_page-1;
$text .= ‘.$pre.‘>[<]’;
}
$i = ($setpage-1)*$this->pernum;
for($j=$i; $j<($i+$pagenum) && $j<$this->pages; $j++) {
$newpage = $j+1;
if ($this->_cur_page == $j+1) {
$text .= ‘ **[‘** **.($j+1).‘]**’;
} else {
$text .= ‘.$newpage.‘>[‘.($j+1).‘]’;
}
}
if ($this->_cur_page < $this->pages){
$next = $this->_cur_page+1;
$text .= ‘.$next.‘>[>]’;
}
if ($setpage < $this->_total) {
$nextpre = $setpage*($this->pernum+1);
if($nextpre<$this->pages)
$text .= ‘.$nextpre.‘>[>>]’;
}
if ($this->_cur_page < $this->pages) {
$text .= ‘...$this->pages.‘>[‘.$this->pages.‘]’;
}
}
return$text;
}
}
//$conn,$tpl 全局变量 传入 $table是数据表 $where 是条件语句 $order 是ADSC之类的,$pager_size是每页显示数,$pager是当前页
//返回后在摸板里面可以直接使用
<{section name=sec loop=$show}> <{/section}>
数字标签用<{$numlink}>
class my_Pager extends show_Pager
{
function __construct($table,$where,$order,$pager_size,$pager)
{
global$conn;
global$tpl;
$sql="Select * FROM `$table` $where order by $order desc";
$nums=$conn->Execute($sql)->RecordCount();
$pager=new show_Pager($nums,$pager_size,$pager);
$show=$conn->SelectLimit($sql,$pager_size,$pager->_offset())->GetAll();
$tpl->assign("numlink",$pager->num_link());//数字标签
$tpl->assign("show",$show);//显示帖子
}
}
?>