Simple, convenient and full-featured PHP paging class_PHP tutorial

Paging class code

class SubPages{

private $each_disNums;//The number of items 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 $page_array = array();//used to construct an array for paging

private $subPage_link; //Link to each page

private $subPage_type;//Display the type of paging

/*

__construct is the constructor of SubPages, which is used to run automatically when creating a class.

@$each_disNums The number of items displayed on each page

@nums Total number of entries

@current_num The currently selected page

@sub_pages The number of pages displayed each time

@subPage_link Link to each page

@subPage_type Display the type of paging

When @subPage_type=1, it is 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] [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){

$this->each_disNums=intval($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 destructor, called when the class is no longer in use, 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);

}

/*

The 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 paging array.

*/

function initArray(){

for($i=0;$isub_pages;$i++){

$this->page_array[$i]=$i;

}

return $this->page_array;

}

/*

construct_num_Page This function is used to construct the displayed entries

Even if: [1][2][3][4][5][6][7][8][9][10]

*/

function construct_num_Page(){

if($this->pageNums sub_pages){

    $current_array=array(); 

     for($i=0;$ipageNums;$i++){  

     $current_array[$i]=$i+1; 

     } 

    }else{ 

    $current_array=$this->initArray(); 

     if($this->current_page

      for($i=0;$i

      $current_array[$i]=$i+1; 

      } 

     }elseif ($this->current_page 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 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 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; 

   } 

} 

?>

 

演示代码:

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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