完美php文章分页类
- 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); //调用show_SubPages函数
 - //echo $this->pageNums."--".$this->sub_pages;
 - }
 - 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;$i<count($current_array);$i++){
 - $current_array[$i]=$i+1;
 - }
 - }elseif ($this->current_page <= $this->pageNums && $this->current_page > $this->pageNums - $this->sub_pages + 1 ){
 - for($i=0;$i<count($current_array);$i++){
 - $current_array[$i]=($this->pageNums)-($this->sub_pages)+1+$i;
 - }
 - }else{
 - for($i=0;$i<count($current_array);$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);
 - $subPageCss1Str.="[<a href='$firstPageUrl'>首页</a>] ";
 - $subPageCss1Str.="[<a href='$prewPageUrl'>上一页</a>] ";
 - }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);
 - $subPageCss1Str.=" [<a href='$nextPageUrl'>下一页</a>] ";
 - $subPageCss1Str.="[<a href='$lastPageUrl'>尾页</a>] ";
 - }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]
 - *//* 产品页用*/
 - function subPageCss2(){
 - $subPageCss2Str="";
 - //jason edit
 - //$subPageCss2Str.="<li class="text">当前第".$this->current_page."/".$this->pageNums."页 </li>";
 - if($this->current_page > 1){
 - $firstPageUrl=$this->subPage_link."1";
 - $prewPageUrl=$this->subPage_link.($this->current_page-1);
 - //$subPageCss2Str.="<li class="pre"><a href='$firstPageUrl'>首 页</a></li>";
 - $subPageCss2Str.="<li class="pre"><a href='$prewPageUrl'>上一页</a></li>";
 - }else {
 - //$subPageCss2Str.="<li class="prea">首 页</li> ";
 - $subPageCss2Str.="<li class="prea">上一页</li> ";
 - }
 - $a=$this->construct_num_Page();
 - for($i=0;$i<count($a);$i++){
 - $s = $a[$i];
 - if($s == $this->current_page ){
 - $subPageCss2Str.="<li class="num">".$s."</li>";
 - }else{
 - $url=$this->subPage_link.$s;
 - //echo $url;exit;
 - $subPageCss2Str.="<li class="num2"><a href='$url'>".$s."</a></li>";
 - //echo $subPageCss2Str;
 - }
 - }
 - //exit;
 - if($this->current_page < $this->pageNums){
 - $lastPageUrl=$this->subPage_link.$this->pageNums;
 - $nextPageUrl=$this->subPage_link.($this->current_page+1);
 - $subPageCss2Str.=" <li class="next"><a href='$nextPageUrl'>下一页</a></li> ";//开源代码phpfensi.com
 - //$subPageCss2Str.="<li class="next"><a href='$lastPageUrl'>尾 页</a></li> ";
 - }else {
 - $subPageCss2Str.="<li class="nexta">下一页</li>";
 - //$subPageCss2Str.="<li class="nexta">尾 页</li> ";
 - }
 - echo $subPageCss2Str;
 - }
 - }