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php 分页类
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<?
php
/**本程序文件對分頁程序進行了封裝*
*/class Page_Link
{var $page_max = 10;
//一組頁碼的最大數var $page_num = 10;
//總頁數var $length = 20;
//一頁的數據條數var $isNextPage =
true;var $isFirstPage =
false;function Calculation_Page_Num(
$total ){$this->page_num =
ceil(
$total /
$this->
length );return $this->
page_num;}function Calculation_Min_Max(
$act_page = 1
){// 定義左右偏移量$py_left = 0
;$py_right = 0
;// 定義左右邊界$bj_left = 0
;$bj_right = 0
;// 定義滾動區間邊界$gd_left = 0
;$gd_right = 0
;// 判斷是否需要分組if ( (
$this->page_num -
$this->page_max ) <= 0
){// 不需要分組$bj_left = 1
;$bj_right =
$this->
page_num;}else{// 要進行分組// 判斷容量的奇偶$tmp =
$this->page_max % 2
;if (
$tmp === 1
){// 奇數$py_left =
$py_right = (
$this->page_max - 1 ) / 2
;}else{// 偶數$py_left =
$this->page_max / 2 - 1
;$py_right =
$this->page_max / 2
;}// 計算滾動區間$gd_left = 1 +
$py_left;$gd_right =
$this->page_num -
$py_right;// 判斷當前頁是否落入了滾動區間if (
$act_page >=
$gd_left &&
$act_page <=
$gd_right ){// 區間內$bj_left =
$act_page -
$py_left;$bj_right =
$act_page +
$py_right;}else{// 區間外if ( (
$act_page -
$py_left ) <= 1
){// 左側固定區間$bj_left = 1
;$bj_right =
$this->
page_max;}else{$bj_left =
$this->page_num -
$this->page_max + 1
;$bj_right =
$this->
page_num;}}}$res =
array();$res['min'] =
$bj_left;$res['max'] =
$bj_right;return $res;}// 主方法
? ? ?/*
? ? ?* $total 數據總數
? ? ?* $act_page 當前頁
? ? ?* $url 跳轉url
? ? ?* $param 頁碼參數
? ? ?*/
function make_page(
$total,
$act_page,
$url,
$param ){$page_num =
$this->Calculation_Page_Num(
$total );$arr_min_max =
$this->Calculation_Min_Max(
$act_page );if (!
eregi("([?|&]
$param=)",
$url)) {$url =
strpos(
$url,"?")===
false?
$url."?":
$url."&"
;$url =
$url."
$param=0"
;}if (
$act_page >
$page_num ){$act_page =
$page_num;}// 用正則把url改成正規的$url =
eregi_replace(
$param . '=[0-9]+',
$param . '=0',
$url );$res =
array();$d = 0
;for(
$i =
$arr_min_max['min'];
$i <=
$arr_min_max['max'];
$i++
){if (
$i ==
$act_page ){$res[
$d]['url'] = ''
;$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;}else{$res[
$d]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$i,
$url );$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;}$d++
;}if (
$this->
isNextPage ){$res =
$this->make_before_next_link(
$res,
$act_page,
$url,
$param );}if (
$this->
isFirstPage ){$res =
$this->make_first_end_link(
$res,
$act_page,
$url,
$param );}return $res;}//// 帶總頁數function make_page_with_total(
$total,
$act_page,
$url,
$param ){$page_num =
$this->Calculation_Page_Num(
$total );$arr_min_max =
$this->Calculation_Min_Max(
$act_page );if (!
eregi("([?|&]
$param=)",
$url)) {$url =
strpos(
$url,"?")===
false?
$url."?":
$url."&"
;$url =
$url."
$param=0"
;}if (
$act_page >
$page_num ){$act_page =
$page_num;}// 用正則把url改成正規的$url =
eregi_replace(
$param . '=[0-9]+',
$param . '=0',
$url );$res =
array();$d = 0
;for(
$i =
$arr_min_max['min'];
$i <=
$arr_min_max['max'];
$i++
){if (
$i ==
$act_page ){$res[
$d]['url'] = ''
;$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;}else{$res[
$d]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$i,
$url );$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;}$d++
;}if (
$this->
isNextPage ){$res =
$this->make_before_next_link(
$res,
$act_page,
$url,
$param );}if (
$this->
isFirstPage ){$res =
$this->make_first_end_link(
$res,
$act_page,
$url,
$param );}$total_num=
ceil(
$total/
$this->
length);$result['total']=
$total_num;$result['DATA']=
$res;return $result;}// 附加上一頁和下一頁function make_before_next_link(
$arr,
$act,
$url,
$param ){$tmp =
array();$before =
$act - 1
;$next =
$act + 1
;if (
$before < 1
){$before = 1
;$tmp[0]['url'] = ''
;$tmp[0]['name'] = "上一頁"
;$tmp[0]['no'] =
$before;}else{$tmp[0]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$before,
$url );$tmp[0]['name'] = "上一頁"
;$tmp[0]['no'] =
$before;}$counts =
sizeof(
$arr );$tmp_count =
sizeof(
$tmp );for(
$i = 0;
$i <
$counts;
$i++
){$tmp[
$tmp_count]['url'] =
$arr[
$i]['url'
];$tmp[
$tmp_count]['name'] =
$arr[
$i]['name'
];$tmp[
$tmp_count]['no'] =
$arr[
$i]['no'
];$tmp_count++
;}if (
$next >
$this->
page_num ){$next =
$this->
page_num;$tmp[
$tmp_count]['url'] = ''
;$tmp[
$tmp_count]['name'] = "下一頁"
;$tmp[
$tmp_count]['no'] =
$next;}else{$tmp[
$tmp_count]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$next,
$url );$tmp[
$tmp_count]['name'] = "下一頁"
;$tmp[
$tmp_count]['no'] =
$next;}return $tmp;}// 附加首頁和尾頁function make_first_end_link(
$arr,
$act,
$url,
$param ){$tmp =
array();$before = 1
;$next =
$this->
page_num;if (
$act == 1
){$before = 1
;$tmp[0]['url'] = ''
;$tmp[0]['name'] = "首頁"
;$tmp[0]['no'] =
$before;}else{$tmp[0]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$before,
$url );$tmp[0]['name'] = "首頁"
;$tmp[0]['no'] =
$before;}$counts =
sizeof(
$arr );$tmp_count =
sizeof(
$tmp );for(
$i = 0;
$i <
$counts;
$i++
){$tmp[
$tmp_count]['url'] =
$arr[
$i]['url'
];$tmp[
$tmp_count]['name'] =
$arr[
$i]['name'
];$tmp[
$tmp_count]['no'] =
$arr[
$i]['no'
];$tmp_count++
;}if (
$act ==
$this->
page_num ){$tmp[
$tmp_count]['url'] = ''
;$tmp[
$tmp_count]['name'] = "尾頁"
;$tmp[
$tmp_count]['no'] =
$next;}else{$tmp[
$tmp_count]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$next,
$url );$tmp[
$tmp_count]['name'] = "尾頁"
;$tmp[
$tmp_count]['no'] =
$next;}return $tmp;}/*** 帶上一頁<，下一頁>，省略號的分頁* @param int $total 記錄總條數* @param int $act_page 當前頁碼* @param string $url url* @param int $maxpageicon 最大顯示頁碼數* @param int $style 上一頁，下一頁顯示樣式* @param string $param url參數*/function make_page_with_points(
$total,
$act_page,
$url,
$maxpageicon,
$style,
$param ){$page_num =
$this->Calculation_Page_Num(
$total );
//總頁數$arr_min_max =
$this->Calculation_Min_Max(
$act_page );
//最大頁，最小頁 if(
$total==0
){return ""
;}if(
$act_page >
$page_num ){$act_page =
$page_num+1
;$page_num =
$page_num+1
;}switch (
$style){case 1:
$name_before = '前一頁'
;$name_next = '后一頁'
;break;case 2:
$name_before = '<'
;$name_next = '>'
;break;case 3:
$name_before = '<<'
;$name_next = '>>'
;break;default:
$name_before = '上一頁'
;$name_next = '下一頁'
;}if (!
eregi("([?|&]
$param=)",
$url)) {$url =
strpos(
$url,"?")===
false?
$url."?":
$url."&"
;$url =
$url."
$param=0"
;}// 用正則把url改成正規的$url =
eregi_replace(
$param . '=[0-9]+',
$param . '=0',
$url );$res =
array();$no_before =
$act_page-1
;$no_next =
$act_page+1
;//總頁數如果小于等于初始化最大呈現頁數if (
$page_num<= (
$maxpageicon + 1
)){//如果當前頁數是首頁 上一頁無效if (
$act_page == 1
) {$res[0]['url'] = ''
;$res[0]['name'] =
$name_before;$res[0]['no'] =
$no_before;}else //上一頁有效
{$res[0]['url'] =
str_replace(
$param . '=0',
$param . '=' .(
$act_page - 1),
$url );$res[0]['name'] =
$name_before;$res[0]['no'] =
$no_before; }//循環添加頁碼$d = 1
;for (
$i = 1;
$i <=
$page_num;
$i++
){if (
$i !=
$act_page){$res[
$d]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$i,
$url );$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;}else //當前頁，頁碼
{$res[
$d]['url'] = ''
;$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;$res[
$d]['attr'] = 'current'
;}$d++
;}$last_d =
count(
$res);//判斷尾頁if(
$act_page ==
$page_num)
//下一頁無效
{$res[
$last_d]['url'] = ''
;$res[
$last_d]['name'] =
$name_next;$res[
$last_d]['no'] =
$no_next; }else{$res[
$last_d]['url'] =
str_replace(
$param . '=0',
$param . '=' .(
$act_page + 1),
$url );$res[
$last_d]['name'] =
$name_next;$res[
$last_d]['no'] =
$no_next;}}else if (
$page_num > (
$maxpageicon + 1))
//如果總頁數滿足添加省略號
{ if (
$act_page <=
$maxpageicon)
//如果當前頁小于等于初始化數目
{//如果當前頁數是首頁 上一頁無效if (
$act_page == 1
) {$res[0]['url'] = ''
;$res[0]['name'] =
$name_before;$res[0]['no'] =
$no_before;}else //上一頁有效
{$res[0]['url'] =
str_replace(
$param . '=0',
$param . '=' .(
$act_page - 1),
$url );$res[0]['name'] =
$name_before;$res[0]['no'] =
$no_before; }//循環添加頁碼$d = 1
;for (
$i = 1;
$i <=
$maxpageicon;
$i++
){if (
$i !=
$act_page){$res[
$d]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$i,
$url );$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;}else //當前頁，頁碼
{$res[
$d]['url'] = ''
;$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;$res[
$d]['attr'] = 'current'
;}$d++
;}$last_d =
count(
$res);//添加省略號$res[
$last_d]['url'] = ''
;$res[
$last_d]['name'] = '...'
;$res[
$last_d]['no'] = ''
;//總頁數$res[
$last_d+1]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$page_num,
$url );$res[
$last_d+1]['name'] =
$page_num;$res[
$last_d+1]['no'] =
$page_num;//下一頁$res[
$last_d+1]['url'] =
str_replace(
$param . '=0',
$param . '=' . (
$act_page + 1),
$url );$res[
$last_d+1]['name'] =
$name_next;$res[
$last_d+1]['no'] =
$no_next; }else//如果當前頁大于最大顯示頁面
{if (
$act_page > (
$page_num -
$maxpageicon))
//滿足后幾頁
{//上一頁$res[0]['url'] =
str_replace(
$param . '=0',
$param . '=' .(
$act_page - 1),
$url );$res[0]['name'] =
$name_before;$res[0]['no'] =
$no_before;//第一頁$res[1]['url'] =
str_replace(
$param . '=0',
$param . '=1',
$url );$res[1]['name'] = 1
;$res[1]['no'] = 1
; //省略號$res[2]['url'] = ''
;$res[2]['name'] = '...'
;$res[2]['no'] = ''
; $d = 3
;for (
$i = (
$page_num -
$maxpageicon + 1);
$i <=
$page_num;
$i++
){if (
$i !=
$act_page){$res[
$d]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$i,
$url );$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;}else //當前頁，頁碼
{$res[
$d]['url'] = ''
;$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;$res[
$d]['attr'] = 'current'
;}$d++
;}$last_d =
count(
$res);//判斷尾頁if(
$act_page ==
$page_num)
//下一頁無效
{$res[
$last_d]['url'] = ''
;$res[
$last_d]['name'] =
$name_next;$res[
$last_d]['no'] =
$no_next; }else{$res[
$last_d]['url'] =
str_replace(
$param . '=0',
$param . '=' .(
$act_page + 1),
$url );$res[
$last_d]['name'] =
$name_next;$res[
$last_d]['no'] =
$no_next;}}else//滿足處在中間
{//上一頁$res[0]['url'] =
str_replace(
$param . '=0',
$param . '=' .(
$act_page - 1),
$url );$res[0]['name'] =
$name_before;$res[0]['no'] =
$no_before;//第一頁$res[1]['url'] =
str_replace(
$param . '=0',
$param . '=1',
$url );$res[1]['name'] = 1
;$res[1]['no'] = 1
; //省略號$res[2]['url'] = ''
;$res[2]['name'] = '...'
;$res[2]['no'] = ''
; for (
$i = (
$act_page - (
$maxpageicon - 2) / 2);
$i <=
floor(
$act_page+(
$maxpageicon - 2) / 2);
$i++
){$i =
ceil(
$i);if (
$i !=
$act_page){$res[
$d]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$i,
$url );$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;}else //當前頁，頁碼
{$res[
$d]['url'] = ''
;$res[
$d]['name'] =
$i;$res[
$d]['no'] =
$i;$res[
$d]['attr'] = 'current'
;}$d++
;}$last_d =
count(
$res);//加省略號$res[
$last_d]['url'] = ''
;$res[
$last_d]['name'] = '...'
;$res[
$last_d]['no'] = ''
;//當前頁$res[
$last_d+1]['url'] =
str_replace(
$param . '=0',
$param . '=' .
$page_num,
$url );$res[
$last_d+1]['name'] =
$page_num;$res[
$last_d+1]['no'] =
$page_num; //下一頁$res[
$last_d+2]['url'] =
str_replace(
$param . '=0',
$param . '=' . (
$act_page + 1),
$url );$res[
$last_d+2]['name'] =
$name_next;$res[
$last_d+2]['no'] =
$no_next;//exit;
}}}return $res;}
}?>
調用
//分頁
$page=
$_GET["p"
];
$num=5
;
include "class.page.php"
;
$rs_total =
$cls_news->get_news_count(
$classid);
//數據總數
$total_page =
ceil(
$rs_total /
$list_news_count);
//總頁數$page_cls =
new Page_Link();
$page_cls->length =
$num;
//每頁條數
$url = "http://localhost:8001/list.php"
;
$page_arr =
$page_cls->make_page(
$rs_total,
$page,
$url,"p"
);$fenye=""
;
foreach (
$page_arr as $v){$v["url"]=
$v["url"]==""?"javascript:;":
$v["url"
];if (
$v["name"]=="Previous"
){$fenye .="<a href='{
$v["url"]}' class='listPrev'>{
$v["name"]}</a>"
;}elseif(
$v["name"]=="Next"
){$fenye .="<a href='{
$v["url"]}' class='listNext'>{
$v["name"]}</a>"
;}else{$fenye .="<a href='{
$v["url"]}'>{
$v["name"]}</a>"
;}}
echo $fenye;
?
轉載于:https://www.cnblogs.com/wangxusummer/p/4149243.html
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