Page.class.php :
<?php
namespace Tools; class Page
{
private $total; //数据表中总记录数
private $listRows; //每页显示行数
private $limit;
private $uri;
private $pageNum; //页数
private $config = array('header' => "个记录", "prev" => "上一页", "next" => "下一页", "first" => "首 页", "last" => "尾 页");
private $listNum = 8;
/*
* $total
* $listRows
*/
public function __construct($total, $listRows = 10, $pa = "")
{
$this->total = $total;
$this->listRows = $listRows;
$this->uri = $this->getUri($pa);
$this->page = !empty($_GET["page"]) ? $_GET["page"] : 1;
$this->pageNum = ceil($this->total / $this->listRows);
$this->limit = $this->setLimit();
} private function setLimit()
{
return "Limit " . ($this->page - 1) * $this->listRows . ", {$this->listRows}";
} private function getUri($pa)
{
$url = $_SERVER["REQUEST_URI"] . (strpos($_SERVER["REQUEST_URI"], '?') ? '' : "?") . $pa;
$parse = parse_url($url); if (isset($parse["query"])) {
parse_str($parse['query'], $params);
unset($params["page"]);
$url = $parse['path'] . '?' . http_build_query($params); } return $url;
} public function __get($args)
{
if ($args == "limit") {
return $this->limit;
} else {
return null;
} } private function start()
{
if ($this->total == 0) {
return 0;
} else {
return ($this->page - 1) * $this->listRows + 1;
} } private function end()
{
return min($this->page * $this->listRows, $this->total);
} private function first()
{
$html = "";
if ($this->page == 1) {
$html .= '';
} else {
$html .= " <a href='{$this->uri}&page=1'>{$this->config["first"]}</a> ";
} return $html;
} private function prev()
{
$html = "";
if ($this->page == 1) {
$html .= '';
} else {
$html .= " <a href='{$this->uri}&page=" . ($this->page - 1) . "'>{$this->config["prev"]}</a> ";
} return $html;
} private function pageList()
{
$linkPage = ""; $inum = floor($this->listNum / 2); for ($i = $inum; $i >= 1; $i--) {
$page = $this->page - $i; if ($page < 1) {
continue;
} $linkPage .= " <a href='{$this->uri}&page={$page}'>{$page}</a> "; } $linkPage .= " {$this->page} "; for ($i = 1; $i <= $inum; $i++) {
$page = $this->page + $i;
if ($page <= $this->pageNum) {
$linkPage .= " <a href='{$this->uri}&page={$page}'>{$page}</a> ";
} else {
break;
} } return $linkPage;
} private function next()
{
$html = "";
if ($this->page == $this->pageNum) {
$html .= '';
} else {
$html .= " <a href='{$this->uri}&page=" . ($this->page + 1) . "'>{$this->config["next"]}</a> ";
} return $html;
} private function last()
{
$html = "";
if ($this->page == $this->pageNum) {
$html .= '';
} else {
$html .= " <a href='{$this->uri}&page=" . ($this->pageNum) . "'>{$this->config["last"]}</a> ";
} return $html;
} private function goPage()
{
return ' <input type="text" onkeydown="javascript:if(event.keyCode==13){var page=(this.value>' . $this->pageNum . ')?' . $this->pageNum . ':this.value;location=\'' . $this->uri . '&page=\'+page+\'\'}" value="' . $this->page . '" style="width:25px"><input type="button" value="GO" onclick="javascript:var page=(this.previousSibling.value>' . $this->pageNum . ')?' . $this->pageNum . ':this.previousSibling.value;location=\'' . $this->uri . '&page=\'+page+\'\'"> ';
}
public function fpage($display = array(0, 1, 2, 3, 4, 5, 6, 7, 8))
{
$html[0] = " 共有<b>{$this->total}</b>{$this->config["header"]} ";
$html[1] = " 每页显示<b>" . ($this->end() - $this->start() + 1) . "</b>条，本页<b>{$this->start()}-{$this->end()}</b>条 ";
$html[2] = " <b>{$this->page}/{$this->pageNum}</b>页 "; $html[3] = $this->first();
$html[4] = $this->prev();
$html[5] = $this->pageList();
$html[6] = $this->next();
$html[7] = $this->last();
$html[8] = $this->goPage();
$fpage = '';
foreach ($display as $index) {
$fpage .= $html[$index];
} return $fpage; } }
使用例子:
$goods = D("Goods");
// 1)分页设置
$total = $goods->count(); // 总记录数
$listRows = 7; // 每页显示条数
// 2)实例化分页对象
$page = new \Tools\Page($total, $listRows);
// 3)分页 sql 语句
$sql = "select * from sw_goods order by goods_id desc " . $page->limit;//limit 方法返回'limit xx,xx'
$info = $goods->query($sql);
// 4)制作页码列表
$fpage = $page->fpage(array(3,4,5,6,7,8)); // 前面的统计信息不要
// 5)分配数组
$this->assign("info", $info);
$this->assign("pagelist", $fpage);
$this->display("showgoodslist");
---->>>