<?
php
/*
* PHP分页类
* @package Page
* @Created 2013-03-27
* @Modify 2013-03-27
* @link http://www.60ie.net
* Example:
$myPage=new Pager(1300,intval($CurrentPage));
$pageStr= $myPage->GetPagerContent();
echo $pageStr;
*/
class Pager {
private $pageSize = 10
;
private $pageIndex;
private $totalNum;
private $totalPagesCount;
private $pageUrl;
private static $_instance;
public function __construct(
$p_totalNum,
$p_pageIndex,
$p_pageSize = 10,
$p_initNum=3,
$p_initMaxNum=5
) {
if (!
isset (
$p_totalNum ) || !
isset(
$p_pageIndex)) {
die ( "pager initial error"
);
}
$this->totalNum =
$p_totalNum;
$this->pageIndex =
$p_pageIndex;
$this->pageSize =
$p_pageSize;
$this->initNum=
$p_initNum;
$this->initMaxNum=
$p_initMaxNum;
$this->totalPagesCount=
ceil(
$p_totalNum /
$p_pageSize);
$this->pageUrl=
$this->
_getPageUrl();
$this->
_initPagerLegal();
}
/**
* 获取去除page部分的当前URL字符串
*
* @return String URL字符串
*/
private function _getPageUrl() {
$CurrentUrl =
$_SERVER["REQUEST_URI"
];
$arrUrl =
parse_url(
$CurrentUrl);
$urlQuery =
$arrUrl["query"
];
if(
$urlQuery){
$urlQuery =
ereg_replace("(^|&)page=" .
$this->pageIndex, "",
$urlQuery);
$CurrentUrl =
str_replace(
$arrUrl["query"],
$urlQuery,
$CurrentUrl);
if(
$urlQuery){
$CurrentUrl.="&page"
;
}
else $CurrentUrl.="page"
;
} else {
$CurrentUrl.="?page"
;
}
return $CurrentUrl;
}
/*
*设置页面参数合法性
*@return void
*/
private function _initPagerLegal()
{
if((!
is_numeric(
$this->pageIndex)) ||
$this->pageIndex<1
)
{
$this->pageIndex=1
;
}elseif(
$this->pageIndex >
$this->
totalPagesCount)
{
$this->pageIndex=
$this->
totalPagesCount;
}
}
//$this->pageUrl}={$i}
//{$this->CurrentUrl}={$this->TotalPages}
public function GetPagerContent() {
$str = "<div class=\"Pagination\">"
;
//首页 上一页
if(
$this->pageIndex==1
)
{
$str .="<a href='javascript:void(0)' class='tips' title='首页'>首页</a> "."\n"
;
$str .="<a href='javascript:void(0)' class='tips' title='上一页'>上一页</a> "."\n"."\n"
;
}else
{
$str .="<a href='{
$this->pageUrl}=1' class='tips' title='首页'>首页</a> "."\n"
;
$str .="<a href='{
$this->pageUrl}=".(
$this->pageIndex-1)."' class='tips' title='上一页'>上一页</a> "."\n"."\n"
;
}
/*
除首末后 页面分页逻辑
*/
//10页（含）以下
$currnt=""
;
if(
$this->totalPagesCount<=10
)
{
for(
$i=1;
$i<=
$this->totalPagesCount;
$i++
)
{
if(
$i==
$this->
pageIndex)
{ $currnt=" class='current'"
;}
else
{ $currnt=""
; }
$str .="<a href='{
$this->pageUrl}={
$i} ' {
$currnt}>
$i</a>"."\n"
;
}
}else //10页以上
{
if(
$this->pageIndex<3)
//当前页小于3
{
for(
$i=1;
$i<=3;
$i++
)
{
if(
$i==
$this->
pageIndex)
{ $currnt=" class='current'"
;}
else
{ $currnt=""
; }
$str .="<a href='{
$this->pageUrl}={
$i} ' {
$currnt}>
$i</a>"."\n"
;
}
$str.="<span class=\"dot\">……</span>"."\n"
;
for(
$i=
$this->totalPagesCount-3+1;
$i<=
$this->totalPagesCount;
$i++)
//功能1
{
$str .="<a href='{
$this->pageUrl}={
$i}' >
$i</a>"."\n"
;
}
}elseif(
$this->pageIndex<=5)
// 5 >= 当前页 >= 3
{
for(
$i=1;
$i<=(
$this->pageIndex+1);
$i++
)
{
if(
$i==
$this->
pageIndex)
{ $currnt=" class='current'"
;}
else
{ $currnt=""
; }
$str .="<a href='{
$this->pageUrl}={
$i} ' {
$currnt}>
$i</a>"."\n"
;
}
$str.="<span class=\"dot\">……</span>"."\n"
;
for(
$i=
$this->totalPagesCount-3+1;
$i<=
$this->totalPagesCount;
$i++)
//功能1
{
$str .="<a href='{
$this->pageUrl}={
$i}' >
$i</a>"."\n"
;
}
}elseif(5<
$this->pageIndex &&
$this->pageIndex<=
$this->totalPagesCount-5 )
//当前页大于5，同时小于总页数-5
{
for(
$i=1;
$i<=3;
$i++
)
{
$str .="<a href='{
$this->pageUrl}={
$i}' >
$i</a>"."\n"
;
}
$str.="<span class=\"dot\">……</span>"
;
for(
$i=
$this->pageIndex-1 ;
$i<=
$this->pageIndex+1 &&
$i<=
$this->totalPagesCount-5+1;
$i++
)
{
if(
$i==
$this->
pageIndex)
{ $currnt=" class='current'"
;}
else
{ $currnt=""
; }
$str .="<a href='{
$this->pageUrl}={
$i} ' {
$currnt}>
$i</a>"."\n"
;
}
$str.="<span class=\"dot\">……</span>"
;
for(
$i=
$this->totalPagesCount-3+1;
$i<=
$this->totalPagesCount;
$i++
)
{
$str .="<a href='{
$this->pageUrl}={
$i}' >
$i</a>"."\n"
;
}
}else
{
for(
$i=1;
$i<=3;
$i++
)
{
$str .="<a href='{
$this->pageUrl}={
$i}' >
$i</a>"."\n"
;
}
$str.="<span class=\"dot\">……</span>"."\n"
;
for(
$i=
$this->totalPagesCount-5;
$i<=
$this->totalPagesCount;
$i++)
//功能1
{
if(
$i==
$this->
pageIndex)
{ $currnt=" class='current'"
;}
else
{ $currnt=""
; }
$str .="<a href='{
$this->pageUrl}={
$i} ' {
$currnt}>
$i</a>"."\n"
;
}
}
}
/*
除首末后 页面分页逻辑结束
*/
//下一页 末页
if(
$this->pageIndex==
$this->
totalPagesCount)
{
$str .="\n"."<a href='javascript:void(0)' class='tips' title='下一页'>下一页</a>"."\n"
;
$str .="<a href='javascript:void(0)' class='tips' title='末页'>末页</a>"."\n"
;
}else
{
$str .="\n"."<a href='{
$this->pageUrl}=".(
$this->pageIndex+1)."' class='tips' title='下一页'>下一页</a> "."\n"
;
$str .="<a href='{
$this->pageUrl}={
$this->totalPagesCount}' class='tips' title='末页'>末页</a> "."\n"
;
}
$str .= "</div>"
;
return $str;
}
/**
* 获得实例
* @return
*/
// static public function getInstance() {
// if (is_null ( self::$_instance )) {
// self::$_instance = new pager ();
// }
// return self::$_instance;
// }
}
?>
转载于:https://www.cnblogs.com/vania/p/5019168.html
