PHP
·
发表于 5年以前
·
阅读量:8309
测试图例:
效果图:
实现代码:
/**
*
* @param $page 页码(1至正无穷)
* @param $num 数据中多上行为一页
* @param $rows 数据的总行数
* @param $length 下标的最大长度
* @return array
*/
public function PageDate($page, $num , $rows , $length){
//初始化数据
$MaxPage = 0; //最大页码
$MinPage = 0; //最小页码
$ServerPage = 0; //下拉框中显示的页码
$PageData = array(); //全部的页码集合(用户下拉框选择)
$PageShowData = array(); //用于显示下标的页码集合
$page = intval($page);
if($rows == 0){
return $data = array(
'page' => $page,
'MaxPage' => $MaxPage,
'MinPage' => $MinPage,
'ServerPage' => $ServerPage,
'PageData' => $PageData,
'PageShowData' => $PageShowData
);
}
//得到最大分页和最小分页
$MaxPage = intval($rows / $num);
$double = $rows % $num;
if($double > 0.000000001)
{
$MaxPage += 1;
}
$MinPage = 1;
$ServerPage = 1;
//得到页码的全部项目
for($i = 1; $i <= $MaxPage; $i++ ){
$PageData[$i] = $i;
}
//对页码进行正确性改正
if($page < $MinPage){
$page = 1;
}
if($page > $MaxPage){
$page = 1;
}
/*生成显示的页码标签*/
//生成左侧的代码快
if($page == $MinPage){
$PageShowData[1] = $page;
}
if($page > $MinPage){
$PageShowData[1] = $MinPage;
// $PageShowData[2] = $page - 1; // <<
$PageShowData[2] = '<<'; // <<
if($page -2 > $MinPage ){
$PageShowData[3] = $page - 2;
$PageShowData[4] = $page - 1;
}elseif($page -2 == $MinPage){
$PageShowData[3] = $page - 1;
}
//确定选中的页码代码快
$PageShowData[count($PageShowData) + 1] = $page;
}
$COUNT = count($PageShowData) + 1;
//生成右侧的代码块
if($page == $MaxPage){
return $data = array(
'page' => $page,
'MaxPage' => $MaxPage,
'MinPage' => $MinPage,
'ServerPage' => $ServerPage,
'PageData' => $PageData,
'PageShowData' => $PageShowData
);
}
if($page < $MaxPage) {
if($MaxPage - $page >= 2){
$j = 1;
for($i = $COUNT; $i <= $length ; $i++){
$PageShowData[$i] = $page + $j;
$j ++;
if($PageShowData[$i] == $MaxPage -1){
break;
}
}
}
$COUNT = count($PageShowData) + 1;
// $PageShowData[$COUNT] = $page + 1; //>>
$PageShowData[$COUNT] = '>>';
$PageShowData[$COUNT + 1] = $MaxPage;
//得到选中的参数
$ServerPage = $PageShowData[$COUNT-1] + 1;
if($ServerPage > $MaxPage){
$ServerPage = 1;
}
return $data = array(
'page' => $page,
'MaxPage' => $MaxPage,
'MinPage' => $MinPage,
'ServerPage' => $ServerPage,
'PageData' => $PageData,
'PageShowData' => $PageShowData
);
}
}
本文出自 IT985博客