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Simple, convenient and full-featured PHP paging class_PHP tutorial
- WBOYOriginal
- 2016-07-14 10:09:021120browse
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;$i<$this->sub_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 < $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;
}
}
?>
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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