一个实用的php分页类
时间:2021-07-01 10:21:17
帮助过:31人阅读
/* - 功能实用的php分页类
- subpages
- */
- class SubPages{
- private $each_disNums;//每页显示的条目数
- private $nums;//总条目数
- private $current_page;//当前被选中的页
- private $sub_pages;//每次显示的页数
- private $pageNums;//总页数
- private $page_array = array();//用来构造分页的数组
- private $subPage_link;//每个分页的链接
- private $subPage_type;//显示分页的类型
/* - __construct是SubPages的构造函数,用来在创建类的时候自动运行.
- @$each_disNums 每页显示的条目数
- @nums 总条目数
- @current_num 当前被选中的页
- @sub_pages 每次显示的页数
- @subPage_link 每个分页的链接
- @subPage_type 显示分页的类型
-
- 当@subPage_type=1的时候为普通分页模式
- example: 共4523条记录,每页显示10条,当前第1/453页 [首页] [上页] [下页] [尾页]
- 当@subPage_type=2的时候为经典分页样式
- example: 当前第1/453页 [首页] [上页] 1 2 3 4 5 6 7 8 9 10 [下页] [尾页]
- */
- function __construct($each_disNums,$nums,$current_page,$sub_pages,$subPage_link,$subPage_type){
- $this->each_disNums=intval($each_disNums);
- $this->nums=intval($nums);
- if(!$current_page){
- $this->current_page=1;
- }else{
- $this->current_page=intval($current_page);
- }
- $this->sub_pages=intval($sub_pages);
- $this->pageNums=ceil($nums/$each_disNums);
- $this->subPage_link=$subPage_link;
- $this->show_SubPages($subPage_type);
- //echo $this->pageNums."--".$this->sub_pages;
- }
-
- /*
- __destruct析构函数,当类不在使用的时候调用,该函数用来释放资源。
- */
- function __destruct(){
- unset($each_disNums);
- unset($nums);
- unset($current_page);
- unset($sub_pages);
- unset($pageNums);
- unset($page_array);
- unset($subPage_link);
- unset($subPage_type);
- }
-
- /*
- show_SubPages函数用在构造函数里面。而且用来判断显示什么样子的分页
- */
- function show_SubPages($subPage_type){
- if($subPage_type == 1){
- $this->subPageCss1();
- }elseif ($subPage_type == 2){
- $this->subPageCss2();
- }
- }
-
- /*
- 用来给建立分页的数组初始化的函数。
- */
- function initArray(){
- for($i=0;$i<$this->sub_pages;$i++){
- $this->page_array[$i]=$i;
- }
- return $this->page_array;
- }
-
- /*
- construct_num_Page该函数使用来构造显示的条目
- 即使:[1][2][3][4][5][6][7][8][9][10]
- */
- function construct_num_Page(){
- if($this->pageNums < $this->sub_pages){
- $current_array=array();
- for($i=0;$i<$this->pageNums;$i++){
- $current_array[$i]=$i+1;
- }
- }else{
- $current_array=$this->initArray();
- if($this->current_page <= 3){
- for($i=0;$i $current_array[$i]=$i+1;
- }
- }elseif ($this->current_page <= $this->pageNums && $this->current_page > $this->pageNums - $this->sub_pages + 1 ){
- for($i=0;$i $current_array[$i]=($this->pageNums)-($this->sub_pages)+1+$i;
- }
- }else{
- for($i=0;$i $current_array[$i]=$this->current_page-2+$i;
- }
- }
- }
- return $current_array;
- }
-
- /*
- 构造普通模式的分页
- 共4523条记录,每页显示10条,当前第1/453页 [首页] [上页] [下页] [尾页]
- */
- function subPageCss1(){
- $subPageCss1Str="";
- $subPageCss1Str.="共".$this->nums."条记录,";
- $subPageCss1Str.="每页显示".$this->each_disNums."条,";
- $subPageCss1Str.="当前第".$this->current_page."/".$this->pageNums."页 ";
- if($this->current_page > 1){
- $firstPageUrl=$this->subPage_link."1";
- $prewPageUrl=$this->subPage_link.($this->current_page-1);
- $subPageCss1Str.="[首页] ";
- $subPageCss1Str.="[上一页] ";
- }else {
- $subPageCss1Str.="[首页] ";
- $subPageCss1Str.="[上一页] ";
- }
-
- if($this->current_page < $this->pageNums){
- $lastPageUrl=$this->subPage_link.$this->pageNums;
- $nextPageUrl=$this->subPage_link.($this->current_page+1);
- $subPageCss1Str.=" [下一页] ";
- $subPageCss1Str.="[尾页] ";
- }else {
- $subPageCss1Str.="[下一页] ";
- $subPageCss1Str.="[尾页] ";
- }
- echo $subPageCss1Str;
- }
-
- /*
- 构造经典模式的分页
- 当前第1/453页 [首页] [上页] 1 2 3 4 5 6 7 8 9 10 [下页] [尾页]
- */
- function subPageCss2(){
- $subPageCss2Str="";
- $subPageCss2Str.="当前第".$this->current_page."/".$this->pageNums."页 ";
-
- if($this->current_page > 1){
- $firstPageUrl=$this->subPage_link."1";
- $prewPageUrl=$this->subPage_link.($this->current_page-1);
- $subPageCss2Str.="[首页] ";
- $subPageCss2Str.="[上一页] ";
- }else {
- $subPageCss2Str.="[首页] ";
- $subPageCss2Str.="[上一页] ";
- }
-
- $a=$this->construct_num_Page();
- for($i=0;$i $s=$a[$i];
- if($s == $this->current_page ){
- $subPageCss2Str.="[".$s."]";
- }else{
- $url=$this->subPage_link.$s;
- $subPageCss2Str.="[".$s."]";
- }
- }
-
- if($this->current_page < $this->pageNums){
- $lastPageUrl=$this->subPage_link.$this->pageNums;
- $nextPageUrl=$this->subPage_link.($this->current_page+1);
- $subPageCss2Str.=" [下一页] ";
- $subPageCss2Str.="[尾页] ";
- }else {
- $subPageCss2Str.="[下一页] ";
- $subPageCss2Str.="[尾页] ";
- }
- echo $subPageCss2Str;
- }
- }
- ?>
测试页面,test.php
require_once("SubPages.php"); - //每页显示的条数
$page_size=20; - //总条目数
$nums=1024; - //每次显示的页数
$sub_pages=10; - //得到当前是第几页
$pageCurrent=$_GET["p"]; - //if(!$pageCurrent) $pageCurrent=1;
-
- $subPages=new SubPages($page_size,$nums,$pageCurrent,$sub_pages,"test.php?p=",2);
- ?>
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