分页是目前在显示大量结果时所采用的最好的方式。有了下面这些代码的帮助，开发人员可以在多个页面中显示大量的数据。在互联网上，分页是一般用于搜索结果或是浏览全部信息
php基本分页
代码如下 复制代码
$totalpages) {
// set current page to last page
$currentpage = $totalpages;
} // end if
// if current page is less than first page...
if ($currentpage // set current page to first page
$currentpage = 1;
} // end if
// the offset of the list, based on current page
$offset = ($currentpage - 1) * $rowsperpage;
// get the info from the db
$sql = select id, number from numbers limit $offset, $rowsperpage;
$result = mysql_query($sql, $conn) or trigger_error(sql, e_user_error);
// while there are rows to be fetched...
while ($list = mysql_fetch_assoc($result)) {
// echo data
echo $list['id'] . : . $list['number'] .
;
} // end while
/****** build the pagination links ******/
// range of num links to show
$range = 3;
// if not on page 1, don't show back links
if ($currentpage > 1) {
// show echo ;
// get previous page num
$prevpage = $currentpage - 1;
// show echo ;
} // end if
// loop to show links to range of pages around current page
for ($x = ($currentpage - $range); $x // if it's a valid page number...
if (($x > 0) && ($x // if we're on current page...
if ($x == $currentpage) {
// 'highlight' it but don't make a link
echo [$x] ;
// if not current page...
} else {
// make it a link
echo $x ;
} // end else
} // end if
} // end for
// if not on last page, show forward and last page links
if ($currentpage != $totalpages) {
// get next page
$nextpage = $currentpage + 1;
// echo forward link for next page
echo > ;
// echo forward link for lastpage
echo >> ;
} // end if
/****** end build pagination links ******/
?>
先看一个常用的php分页类
代码如下 复制代码
1)
{
$pagination .=
;
//previous button
if ($page > 1)
$pagination.= � previous;
else
$pagination.= � previous;
//pages
if ($lastpage {
for ($counter = 1; $counter {
if ($counter == $page)
$pagination.= $counter;
else
$pagination.= $counter;
}
}
elseif($lastpage > 5 + ($adjacents * 2)) //enough pages to hide some
{
//close to beginning; only hide later pages
if($page {
for ($counter = 1; $counter {
if ($counter == $page)
$pagination.= $counter;
else
$pagination.= $counter;
}
$pagination.= ...;
$pagination.= $lpm1;
$pagination.= $lastpage;
}
//in middle; hide some front and some back
elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
{
$pagination.= 1;
$pagination.= 2;
$pagination.= ...;
for ($counter = $page - $adjacents; $counter {
if ($counter == $page)
$pagination.= $counter;
else
$pagination.= $counter;
}
$pagination.= ...;
$pagination.= $lpm1;
$pagination.= $lastpage;
}
//close to end; only hide early pages
else
{
$pagination.= 1;
$pagination.= 2;
$pagination.= ...;
for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter {
if ($counter == $page)
$pagination.= $counter;
else
$pagination.= $counter;
}
}
}
//next button
if ($page $pagination.= next �;
else
$pagination.= next �;
$pagination.=
n;
}
?>
=$pagination?>
实例
代码如下 复制代码
totalnum = $count;//总记录数
$this->pagesize = $size;//每页大小
$this->pageno = $pageno;
//计算总页数
$this->pagecount = ceil($this->totalnum/$this->pagesize);
$this->pagecount = ($this->pagecountpagecount;
//检查pageno
$this->pageno = $this->pageno == 0 ? 1 : $this->pageno;
$this->pageno = $this->pageno > $this->pagecount? $this->pagecount : $this->pageno;
//计算偏移
$this->offset = ( $this->pageno - 1 ) * $this->pagesize;
//计算是否有上一页下一页
$this->hasprepage = $this->pageno == 1 ?false:true;
$this->hasnextpage = $this->pageno >= $this->pagecount ?false:true;
$this->pagedata = $pagedata;
$this->jsfunction = $jsfunction;
}
/**
* 分页算法
* @return
*/
private function generatepagelist(){
$pagelist = array();
if($this->pagecount for($i=0;$ipagecount;$i++){
array_push($pagelist,$i+1);
}
}else{
if($this->pageno for($i=0;$i array_push($pagelist,$i+1);
}
array_push($pagelist,-1);
array_push($pagelist,$this->pagecount);
}else if($this->pageno > $this->pagecount - 4){
array_push($pagelist,1);
array_push($pagelist,-1);
for($i=5;$i>0;$i--){
array_push($pagelist,$this->pagecount - $i+1);
}
}else if($this->pageno > 4 && $this->pageno pagecount - 4){
array_push($pagelist,1);
array_push($pagelist,-1);
array_push($pagelist,$this->pageno -2);
array_push($pagelist,$this->pageno -1);
array_push($pagelist,$this->pageno);
array_push($pagelist,$this->pageno + 1);
array_push($pagelist,$this->pageno + 2);
array_push($pagelist,-1);
array_push($pagelist,$this->pagecount);
}
}
return $pagelist;
}
/***
* 创建分页控件
* @param
* @return string
*/
public function echopageasdiv(){
$pagelist = $this->generatepagelist();
$pagestring =
;
if(!empty($pagelist)){
if($this->pagecount >1){
if($this->hasprepage){
$pagestring = $pagestring .jsfunction . ( . ($this->pageno-1) . )>上一页;
}
foreach ($pagelist as $k=>$p){
if($this->pageno == $p){
$pagestring = $pagestring . . $this->pageno . ;
continue;
}
if($p == -1){
$pagestring = $pagestring ....;
continue;
}
$pagestring = $pagestring .jsfunction . ( . $p . )> . $p . ;
}
if($this->hasnextpage){
$pagestring = $pagestring .jsfunction . ( . ($this->pageno+1) . )>下一页;
}
}
}
$pagestring = $pagestring .(
);
return $pagestring;
}
}?>
css代码
代码如下 复制代码
-->
在php页面中的调用方法
代码如下 复制代码
$pageno = $_get['pageno'];
if(empty($pageno)){
$pageno = 1;
}
//分页数据
$pagedata = news::getnewspage($pageno,$pagesize);
//取得总行数
$count = news::getnewscount();
//创建分页器
$p = new pageview($count['0']['total'],$pagesize,$pageno,$pagedata);
//生成页码
$pageviewstring = $p->echopageasdiv();
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