//分页类
class Page{
private $total; //总记录数
private $nums; //每页显示的条数
private $pages; //总页数
private $cpage; //当前页
private $url; //当前url
public function __construct($total,$nums){
$this->total = $total;
$this->nums = $nums;
$this->pages = $this->getPages();
$this->url = $this->setUrl();
//获取当前页
$this->cpage = !empty($_GET['page']) ? intval($_GET['page']):1;
$this->cpage = $this->cpage>0 ?$this->cpage:1;
$this->cpage = $this->cpage>$this->pages?$this->pages:$this->cpage;
}
private function setUrl(){
$url = $_SERVER['REQUEST_URI'];
if(strstr($url, "?")){
$arr = parse_url($url);
if(isset($arr['query'])){
parse_str($arr['query'],$output);
}
//删除url中重复的page=n的字符串
unset($output['page']);
$url = $arr['path']."?".http_build_query($output);
}else{
$url .="?";
}
return $url;
}
//获取页数
private function getPages(){
return ceil($this->total/$this->nums);// 向上取整法
}
//首页
private function first(){
//如果当前页是第一页 则不显示这些
if($this->cpage>1){
$pre = $this->cpage-1;
return 'url.'&page=1">首页 url.'&page='.$pre.'">上一页';
}else{
return '';
}
}
//列表
private function flist(){
$list = "";
$num = 4;
//当前页之前的设置
for($i=$num;$i >=1;$i--){
$page = $this->cpage-$i;
if($page >1){
$list .= ' url.'&page='.$page.'">'.$page.' ';
}
}
//当前页的设置
if($this->pages>1){
$list .=' '.$this->cpage.' ';
}
//当前页之后的设置
for($i=1;$i <=$num;$i++){
$page = $this->cpage+$i;
if($page <= $this->pages){
$list .= ' url.'&page='.$page.'">'.$page.' ';
}else{
break;
}
}
return $list;
}
//末页
private function last(){
if($this->cpage < $this->pages){
$next = $this->cpage+1;
return 'url.'&page='.$next.'">下一页 url.'&page='.$this->pages.'">末页 ';
}else{
return '';
}
}
//开始 从多少条记录开始
private function start(){
return ($this->cpage-1)*$this->nums+1;
}
//结束 到多少条记录结束
private function end(){
return min($this->cpage*$this->nums,$this->total);
}
//当前显示的条数
private function currnum(){
return $this->end()-$this->start()+1;
}
//分页方法
public function fpage(){
$arr = func_get_args();
$fpage ="";
$pages[0]=" 共{$this->total}条记录 ";
$pages[1]=" 本页显示".$this->currnum()."条记录 ";
$pages[2]=" 从".$this->start()."-".$this->end()."条 ";
$pages[3]=" {$this->cpage}/{$this->pages} ";
$pages[4]=" ".$this->first()." ";
$pages[5]=" ".$this->flist()." ";
$pages[6]=" ".$this->last()." ";
if(count($arr)<1)
$arr = array(0,1,2,3,4,5,6);
foreach($arr as $n){
$fpage .= $pages[$n];
}
return $fpage;
}
}
调用分页类
include 'print.php';
$page = new Page(1000,10);
echo $page->fpage(6,4,5);
