Sample code sharing for paging using html5 API

Use html5 Api to implement pagination sample code sharing

//htmlapi.php
query($sql);
    $ar=$rs->fetch();
    $count=$ar['num'];
    $pagecount=ceil($count/$pagesize);
    $sql="select id,title from course_lesson_text limit $limit,$pagesize";
    $rs=$db->query($sql);
    $arr=$rs->fetchAll();
    $next=$page+1>$pagecount?$pagecount:$page+1;
        $up=$page-1<1?1:$page-1;
    $pagea="首页上一页
    下一页尾页";
    $exit['arr']=$arr;
    $exit['page']=$pagea;
    exit(json_encode($exit));
 ?>
//index.php
query($sql);
    $ar=$rs->fetch();
    $count=$ar['num'];
    $pagecount=ceil($count/$pagesize);
    $sql="select id,title from course_lesson_text limit $limit,$pagesize";
    $rs=$db->query($sql);
    $arr=$rs->fetchAll();
    ?>
    
    

         $value) {
            ?>
            

            
    
    $pagecount?$pagecount:$page+1;
        $up=$page-1<1?1:$page-1;
    ?>
    

    首页
     上一页
    下一页
    $i";
        }*/
    ?>
    尾页