PHP自动生成分页链接
2024-08-25 15:36:37
page.class.php
<?php
class Page {
// 分页栏每页显示的页数
public $rollPage = 5;
// 页数跳转时要带的参数
public $parameter ;
// 默认列表每页显示行数
public $listRows = 20;
// 起始行数
public $firstRow ;
// 分页总页面数
protected $totalPages ;
// 总行数
protected $totalRows ;
// 当前页数
protected $nowPage ;
// 分页的栏的总页数
protected $coolPages ;
// 分页显示定制
protected $config = array('prev'=>'上一页','next'=>'下一页','first'=>'第一页','last'=>'最后一页','theme'=>'%upPage% %downPage% %first% %prePage% %linkPage% %nextPage% %end%');
// 默认分页变量名
protected $varPage;
public function __construct($totalRows,$listRows='',$parameter='') {
$this->totalRows = $totalRows;
$this->parameter = $parameter;
if(!empty($listRows)) {
$this->listRows = intval($listRows);
}
$this->totalPages = ceil($this->totalRows/$this->listRows); //总页数
$this->coolPages = ceil($this->totalPages/$this->rollPage);
$this->nowPage = !empty($_GET[$this->varPage])?intval($_GET[$this->varPage]):1;
if(!empty($this->totalPages) && $this->nowPage>$this->totalPages) {
$this->nowPage = $this->totalPages;
}
$this->firstRow = $this->listRows*($this->nowPage-1);
}
public function setConfig($name,$value) {
if(isset($this->config[$name])) {
$this->config[$name] = $value;
}
}
public function shows(){
$data['nowPage']=$this->nowPage;
$data['totalPages']=$this->totalPages;
return $data;
}
public function show() {
if(0 == $this->totalRows) return '';
$p = $this->varPage;
$nowCoolPage = ceil($this->nowPage/$this->rollPage);
$url = $_SERVER['REQUEST_URI'].(strpos($_SERVER['REQUEST_URI'],'?')?'':"?").$this->parameter;
$parse = parse_url($url);
if(isset($parse['query'])) {
parse_str($parse['query'],$params);
unset($params[$p]);
$url = $parse['path'].'?'.http_build_query($params);
}
//上下翻页字符串
$upRow = $this->nowPage-1;
$downRow = $this->nowPage+1;
if ($upRow>0){
$upPage="<a href='".$url."&".$p."=$upRow'>".$this->config['prev']."</a>";
}else{
$upPage="";
}
if ($downRow <= $this->totalPages){
$downPage="<a href='".$url."&".$p."=$downRow'>".$this->config['next']."</a>";
}else{
$downPage="";
}
// << < > >>
if($nowCoolPage == 1){
$theFirst = "";
$prePage = "";
}else{
$preRow = $this->nowPage-$this->rollPage;
$prePage = "<a href='".$url."&".$p."=$preRow' >上".$this->rollPage."页</a>";
$theFirst = "<a href='".$url."&".$p."=1' >".$this->config['first']."</a>";
}
if($nowCoolPage == $this->coolPages){
$nextPage = "";
$theEnd="";
}else{
$nextRow = $this->nowPage+$this->rollPage;
$theEndRow = $this->totalPages;
$nextPage = "<a href='".$url."&".$p."=$nextRow' >下".$this->rollPage."页</a>";
$theEnd = "<a href='".$url."&".$p."=$theEndRow' >".$this->config['last']."</a>";
}
// 1 2 3 4 5
$linkPage = "";
for($i=1;$i<=$this->rollPage;$i++){
$page=($nowCoolPage-1)*$this->rollPage+$i;
if($page!=$this->nowPage){
if($page<=$this->totalPages){
$linkPage .= "&nbsp;<a href='".$url."&".$p."=$page'>&nbsp;".$page."&nbsp;</a>";
}else{
break;
}
}else{
if($this->totalPages != 1){
$linkPage .= "&nbsp;<span class='current'>".$page."</span>";
}
}
}
$pageStr = str_replace(
array('%header%','%nowPage%','%totalRow%','%totalPage%','%upPage%','%downPage%','%first%','%prePage%','%linkPage%','%nextPage%','%end%'),
array($this->config['header'],$this->nowPage,$this->totalRows,$this->totalPages,$upPage,$downPage,$theFirst,$prePage,$linkPage,$nextPage,$theEnd),$this->config['theme']);
return $pageStr;
}
}
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