Simple, convenient, full-featured PHP paging class
Jul 09, 2016 am 09:09 AM
<?php
class SubPages{
private $each_disNums;//每頁顯示的條目數(shù)
private $nums;//總條目數(shù)
private $current_page;//當(dāng)前被選中的頁
private $sub_pages;//每次顯示的頁數(shù)
private $pageNums;//總頁數(shù)
private $page_array = array();//用來構(gòu)造分頁的數(shù)組
private $subPage_link;//每個分頁的鏈接
private $subPage_type;//顯示分頁的類型
/*
__construct是SubPages的構(gòu)造函數(shù)，用來在創(chuàng)建類的時候自動運行.
@$each_disNums 每頁顯示的條目數(shù)
@nums 總條目數(shù)
@current_num 當(dāng)前被選中的頁
@sub_pages 每次顯示的頁數(shù)
@subPage_link 每個分頁的鏈接
@subPage_type 顯示分頁的類型
當(dāng)@subPage_type=1的時候為普通分頁模式
example： 共4523條記錄,每頁顯示10條,當(dāng)前第1/453頁 [首頁] [上頁] [下頁] [尾頁]
當(dāng)@subPage_type=2的時候為經(jīng)典分頁樣式
example： 當(dāng)前第1/453頁 [首頁] [上頁] 1 2 3 4 5 6 7 8 9 10 [下頁] [尾頁]
*/
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析構(gòu)函數(shù)，當(dāng)類不在使用的時候調(diào)用，該函數(shù)用來釋放資源。
*/
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函數(shù)用在構(gòu)造函數(shù)里面。而且用來判斷顯示什么樣子的分頁
*/
function show_SubPages($subPage_type){
if($subPage_type == 1){
$this->subPageCss1();
}elseif ($subPage_type == 2){
$this->subPageCss2();
}
}
/*
用來給建立分頁的數(shù)組初始化的函數(shù)。
*/
function initArray(){
for($i=0;$i<$this->sub_pages;$i++){
$this->page_array[$i]=$i;
}
return $this->page_array;
}
/*
construct_num_Page該函數(shù)使用來構(gòu)造顯示的條目
即使：[1][2][3][4][5][6][7][8][9][10]
*/
function construct_num_Page(){
if($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;
}
/*
構(gòu)造普通模式的分頁
共4523條記錄,每頁顯示10條,當(dāng)前第1/453頁 [首頁] [上頁] [下頁] [尾頁]
*/
function subPageCss1(){
$subPageCss1Str="";
$subPageCss1Str.="共".$this->nums."條記錄，";
$subPageCss1Str.="每頁顯示".$this->each_disNums."條，";
$subPageCss1Str.="當(dāng)前第".$this->current_page."/".$this->pageNums."頁 ";
if($this->current_page > 1){
$firstPageUrl=$this->subPage_link."1";
$prewPageUrl=$this->subPage_link.($this->current_page-1);
$subPageCss1Str.="[首頁] ";
$subPageCss1Str.="[上一頁] ";
}else {
$subPageCss1Str.="[首頁] ";
$subPageCss1Str.="[上一頁] ";
}
if($this->current_page < $this->pageNums){
$lastPageUrl=$this->subPage_link.$this->pageNums;
$nextPageUrl=$this->subPage_link.($this->current_page+1);
$subPageCss1Str.=" [下一頁] ";
$subPageCss1Str.="[尾頁] ";
}else {
$subPageCss1Str.="[下一頁] ";
$subPageCss1Str.="[尾頁] ";
}
echo $subPageCss1Str;
}
/*
構(gòu)造經(jīng)典模式的分頁
當(dāng)前第1/453頁 [首頁] [上頁] 1 2 3 4 5 6 7 8 9 10 [下頁] [尾頁]
*/
function subPageCss2(){
$subPageCss2Str="";
$subPageCss2Str.="當(dāng)前第".$this->current_page."/".$this->pageNums."頁 ";
if($this->current_page > 1){
$firstPageUrl=$this->subPage_link."1";
$prewPageUrl=$this->subPage_link.($this->current_page-1);
$subPageCss2Str.="[首頁] ";
$subPageCss2Str.="[上一頁] ";
}else {
$subPageCss2Str.="[首頁] ";
$subPageCss2Str.="[上一頁] ";
}
$a=$this->construct_num_Page();
for($i=0;$i<count($a);$i++){
$s=$a[$i];
if($s == $this->current_page ){
$subPageCss2Str.="[<span style='color:red;font-weight:bold;'>".$s."</span>]";
}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.=" [下一頁] ";
$subPageCss2Str.="[尾頁] ";
}else {
$subPageCss2Str.="[下一頁] ";
$subPageCss2Str.="[尾頁] ";
}
echo $subPageCss2Str;
}
}
?>
Demo code:
<?php
require_once("SubPages.php");
//每頁顯示的條數(shù)
$page_size=20;
//總條目數(shù)
$nums=1024;
//每次顯示的頁數(shù)
$sub_pages=10;
//得到當(dāng)前是第幾頁
$pageCurrent=$_GET["p"];
//if(!$pageCurrent) $pageCurrent=1;
$subPages=new SubPages($page_size,$nums,$pageCurrent,$sub_pages,"test.php?p=",2);
?>
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