Practical php paging class, multiple paging styles

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class SubPages{
 private $each_disNums; //The number of entries displayed on each page
 private $nums; //Total number of entries
 private $current_page; //The currently selected page
 private $sub_pages;//Number of pages displayed each time
 private $pageNums;//Total number of pages
 private $point;//Total number of pages
 private $page_array = array();//Array used to construct paging
 private $subPage_link;//The link of each page
 private $subPage_type;//Display the type of page
 / *
 __construct is the constructor of SubPages, which is used to run automatically when creating the class.
 @$each_disNums Displayed on each page Number of entries
 @nums Total number of entries
 @current_num Currently selected page
 @sub_pages Number of pages displayed each time
 @subPage_link Link to each page
 @subPage_type Display type of paging

 When @subPage_type=1 Normal paging mode
 example: 4523 records in total, 10 records displayed on each page, current page 1/453 [Home] [Previous page] [Next page] [Last page]
 When @subPage_type=2, it is the classic paging style
 example: Current page 1/453 [Home page] [Previous page] 1 2 3 4 5 6 7 8 9 10 [Next page] [Last page]
 * /
 function __construct($each_disNums,$nums,$current_page, $sub_pages,$subPage_link,$subPage_type,$point){
 $this->each_disNums=intval($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;
 $this->point=$point;
 $this->show_SubPages($subPage_type);
 //echo $this ->pageNums."--".$this->sub_pages;
 }

 / *
 __destruct destructor, called when the class is no longer in use, this function is used to release resources.
 * /
 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 function is used in the constructor. And used to determine what kind of paging to display
 * /
 function show_SubPages($subPage_type){
 if($subPage_type == 1){
 $this->subPageCss1();
 }elseif ($subPage_type == 2) {
 $this->subPageCss2();
 }
 }

 / *
 Function used to initialize the array for creating paging.
   * /
  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="";
   //共246页2347条商家信息
   $subPageCss2Str.= "当前第".$this->current_page." /".$this->pageNums." 页     共".$this->nums."条商家信息";
   //$subPageCss2Str.="当前第".$this->current_page."/".$this->pageNums."页 ";


    if($this->current_page > 1){
    $firstPageUrl=$this->subPage_link."1"."#zkfb_shop";
    $prewPageUrl=$this->subPage_link.($this->current_page-1).$this->point;
    //首页上一页
    $subPageCss2Str.="首页";
    $subPageCss2Str.="尾页";
    }
    echo $subPageCss2Str;
   }
}
?>