分頁是目前在顯示大量結果時所采用的最好的方式。有了下面這些代碼的幫助，開發人員可以在多個頁面中顯示大量的數據。在互聯網上，分頁是一般用於搜索結果或是浏覽全部信息
php基本分頁
代碼如下 復制代碼<?php
// database connection info
$conn = mysql_connect('localhost','dbusername','dbpass') or trigger_error("SQL", E_USER_ERROR);
$db = mysql_select_db('dbname',$conn) or trigger_error("SQL", E_USER_ERROR);
// find out how many rows are in the table
$sql = "SELECT COUNT(*) FROM numbers";
$result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR);
$r = mysql_fetch_row($result);
$numrows = $r[0];
// number of rows to show per page
$rowsperpage = 10;
// find out total pages
$totalpages = ceil($numrows / $rowsperpage);
// get the current page or set a default
if (isset($_GET['currentpage']) && is_numeric($_GET['currentpage'])) {
// cast var as int
$currentpage = (int) $_GET['currentpage'];
} else {
// default page num
$currentpage = 1;
} // end if
// if current page is greater than total pages...
if ($currentpage > $totalpages) {
// set current page to last page
$currentpage = $totalpages;
} // end if
// if current page is less than first page...
if ($currentpage < 1) {
// 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'] . "<br />";
} // 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 << link to go back to page 1
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=1'><<</a> ";
// get previous page num
$prevpage = $currentpage - 1;
// show < link to go back to 1 page
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$prevpage'><</a> ";
} // end if
// loop to show links to range of pages around current page
for ($x = ($currentpage - $range); $x < (($currentpage + $range) + 1); $x++) {
// if it's a valid page number...
if (($x > 0) && ($x <= $totalpages)) {
// if we're on current page...
if ($x == $currentpage) {
// 'highlight' it but don't make a link
echo " [<b>$x</b>] ";
// if not current page...
} else {
// make it a link
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$x'>$x</a> ";
} // end else
} // end if
} // end for
// if not on last page, show forward and last page links
if ($currentpage != $totalpages) {
// get next page
$nextpage = $currentpage + 1;
// echo forward link for next page
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$nextpage'>></a> ";
// echo forward link for lastpage
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$totalpages'>>></a> ";
} // end if
/****** end build pagination links ******/
?>
先看一個常用的php分頁類
代碼如下 復制代碼<?php
/*
Place code to connect to your DB here.
*/
include('config.php'); // include your code to connect to DB.
$tbl_name=""; //your table name
// How many adjacent pages should be shown on each side?
$adjacents = 3;
/*
First get total number of rows in data table.
If you have a WHERE clause in your query, make sure you mirror it here.
*/
$query = "SELECT COUNT(*) as num FROM $tbl_name";
$total_pages = mysql_fetch_array(mysql_query($query));
$total_pages = $total_pages[num];
/* Setup vars for query. */
$targetpage = "filename.php"; //your file name (the name of this file)
$limit = 2; //how many items to show per page
$page = $_GET['page'];
if($page)
$start = ($page - 1) * $limit; //first item to display on this page
else
$start = 0; //if no page var is given, set start to 0
/* Get data. */
$sql = "SELECT column_name FROM $tbl_name LIMIT $start, $limit";
$result = mysql_query($sql);
/* Setup page vars for display. */
if ($page == 0) $page = 1; //if no page var is given, default to 1.
$prev = $page - 1; //previous page is page - 1
$next = $page + 1; //next page is page + 1
$lastpage = ceil($total_pages/$limit); //lastpage is = total pages / items per page, rounded up.
$lpm1 = $lastpage - 1; //last page minus 1
/*
Now we apply our rules and draw the pagination object.
We're actually saving the code to a variable in case we want to draw it more than once.
*/
$pagination = "";
if($lastpage > 1)
{
$pagination .= "<div class="pagination">";
//previous button
if ($page > 1)
$pagination.= "<a href="$targetpage?page=$prev">� previous</a>";
else
$pagination.= "<span class="disabled">� previous</span>";
//pages
if ($lastpage < 7 + ($adjacents * 2)) //not enough pages to bother breaking it up
{
for ($counter = 1; $counter <= $lastpage; $counter++)
{
if ($counter == $page)
$pagination.= "<span class="current">$counter</span>";
else
$pagination.= "<a href="$targetpage?page=$counter">$counter</a>";
}
}
elseif($lastpage > 5 + ($adjacents * 2)) //enough pages to hide some
{
//close to beginning; only hide later pages
if($page < 1 + ($adjacents * 2))
{
for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++)
{
if ($counter == $page)
$pagination.= "<span class="current">$counter</span>";
else
$pagination.= "<a href="$targetpage?page=$counter">$counter</a>";
}
$pagination.= "...";
$pagination.= "<a href="$targetpage?page=$lpm1">$lpm1</a>";
$pagination.= "<a href="$targetpage?page=$lastpage">$lastpage</a>";
}
//in middle; hide some front and some back
elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
{
$pagination.= "<a href="$targetpage?page=1">1</a>";
$pagination.= "<a href="$targetpage?page=2">2</a>";
$pagination.= "...";
for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)
{
if ($counter == $page)
$pagination.= "<span class="current">$counter</span>";
else
$pagination.= "<a href="$targetpage?page=$counter">$counter</a>";
}
$pagination.= "...";
$pagination.= "<a href="$targetpage?page=$lpm1">$lpm1</a>";
$pagination.= "<a href="$targetpage?page=$lastpage">$lastpage</a>";
}
//close to end; only hide early pages
else
{
$pagination.= "<a href="$targetpage?page=1">1</a>";
$pagination.= "<a href="$targetpage?page=2">2</a>";
$pagination.= "...";
for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++)
{
if ($counter == $page)
$pagination.= "<span class="current">$counter</span>";
else
$pagination.= "<a href="$targetpage?page=$counter">$counter</a>";
}
}
}
//next button
if ($page < $counter - 1)
$pagination.= "<a href="$targetpage?page=$next">next �</a>";
else
$pagination.= "<span class="disabled">next �</span>";
$pagination.= "</div>n";
}
?>
<?php
while($row = mysql_fetch_array($result))
{
// Your while loop here
}
?>
<?=$pagination?>
實例
<?php
class PageView{
/**頁碼**/
public $pageNo = 1;
/**頁大小**/
public $pageSize = 20;
/**共多少頁**/
public $pageCount = 0;
/**總記錄數**/
public $totalNum = 0;
/**偏移量,當前頁起始行**/
public $offSet = 0;
/**每頁數據**/
public $pageData = array();
/**是否有上一頁**/
public $hasPrePage = true;
/**是否有下一頁**/
public $hasNextPage = true;
public $pageNoList = array();
public $jsFunction ='jsFunction';
/**
*
* @param unknown_type $count 總行數
* @param unknown_type $size 分頁大小
* @param unknown_type $string
*/
public function __construct($count=0, $size=20,$pageNo=1,$pageData =array(),$jsFunction='jsFunction'){
$this->totalNum = $count;//總記錄數
$this->pageSize = $size;//每頁大小
$this->pageNo = $pageNo;
//計算總頁數
$this->pageCount = ceil($this->totalNum/$this->pageSize);
$this->pageCount = ($this->pageCount<=0)?1:$this->pageCount;
//檢查pageNo
$this->pageNo = $this->pageNo == 0 ? 1 : $this->pageNo;
$this->pageNo = $this->pageNo > $this->pageCount? $this->pageCount : $this->pageNo;
//計算偏移
$this->offset = ( $this->pageNo - 1 ) * $this->pageSize;
//計算是否有上一頁下一頁
$this->hasPrePage = $this->pageNo == 1 ?false:true;
$this->hasNextPage = $this->pageNo >= $this->pageCount ?false:true;
$this->pageData = $pageData;
$this->jsFunction = $jsFunction;
}
/**
* 分頁算法
* @return
*/
private function generatePageList(){
$pageList = array();
if($this->pageCount <= 9){
for($i=0;$i<$this->pageCount;$i++){
array_push($pageList,$i+1);
}
}else{
if($this->pageNo <= 4){
for($i=0;$i<5;$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 <= $this->pageCount - 4){
array_push($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;
}
/***
* 創建分頁控件
* @param
* @return String
*/
public function echoPageAsDiv(){
$pageList = $this->generatePageList();
$pageString ="<div class='pagination'><div class='page-bottom'>";
if(!empty($pageList)){
if($this->pageCount >1){
if($this->hasPrePage){
$pageString = $pageString ."<a class='page-next' href="javascript：" .$this->jsFunction . "(" . ($this->pageNo-1) . ")">上一頁</a>";
}
foreach ($pageList as $k=>$p){
if($this->pageNo == $p){
$pageString = $pageString ."<span class='page-cur'>" . $this->pageNo . "</span>";
continue;
}
if($p == -1){
$pageString = $pageString ."<span class='page-break'>...</span>";
continue;
}
$pageString = $pageString ."<a href="javascript：" .$this->jsFunction . "(" . $p . ")">" . $p . "</a>";
}
if($this->hasNextPage){
$pageString = $pageString ."<a class='page-next' href="javascript：" .$this->jsFunction . "(" . ($this->pageNo+1) . ")">下一頁</a>";
}
}
}
$pageString = $pageString .("</div></div>");
return $pageString;
}
}
?>
css代碼
代碼如下 復制代碼<style type="text/css">
<!--
.pagination {font-family: Tahoma;overflow: hidden; padding-top: 12px; text-align: center;}
.pagination-tab { margin-bottom: 20px;}
.pagination a, .pagination .page-cur, .pagination .page-prev_g, .pagination .page-prev, .pagination .page-next, .pagination .page-next_g, .pagination .page-break, .pagination .page-skip {
display: inline-block;font-family: Tahoma,SimSun,Arial; height: 22px;line-height:22px; margin: 0; min-width: 16px;padding: 0 5px; text-align: center; vertical-align: top; white-space: nowrap;}
.pagination a, .pagination .page-prev_g, .pagination .page-prev, .pagination .page-next, .pagination .page-next_g, .pagination .page-cur, .pagination .page-break {
border: 1px solid #ed3d83; color:#e9357d; font-weight:bold;}
.pagination a:hover { border: 1px solid #ed3d83;text-decoration: none; background-color:#f95f9d; color:#fff;}
.pagination .page-prev_g, .pagination .page-prev, .pagination .page-next, .pagination .page-next_g { width: 36px; background-image: url(../static/img/page.gif);}
.pagination .page-prev { background-position: -0px -38px; padding-left: 16px;}
.pagination .page-prev_g { background-position:0px -59px; padding-left: 16px; color:#cbcbcb; font-weight:normal;}
.pagination .page-next { background-position: 0px 0px; padding-right: 16px; font-weight:normal;}
.pagination .page-next_g { background-position: -0px -19px; padding-right: 16px; color:#cbcbcb;}
.pagination .page-cur {background-color: #f95f9d; border: 1px solid #ed3d83;color: #fff;font-weight: bold;}
.pagination .page-break {border: medium none; background:none transparent; color:#333;}
-->
</style>
在php頁面中的調用方法
代碼如下 復制代碼 $pageNo = $_GET['pageNo'];
if(empty($pageNo)){
$pageNo = 1;
}
//分頁數據
$pageData = News::getNewsPage($pageNo,$pageSize);
//取得總行數
$count = News::getNewsCount();
//創建分頁器
$p = new PageView($count['0']['TOTAL'],$pageSize,$pageNo,$pageData);
//生成頁碼
$pageViewString = $p->echoPageAsDiv();
