PHP 列表页 展示方法 修正版

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Release: 2016-06-13 12:00:36
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PHP 列表页 显示方法 修正版
数据库名称:persons
数据库表名:cs
数据库表字段:id   FirstName
数据库IP:localhost(本地)
数据库用户名:root
数据库密码:(空)
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Untitled Document



     
   
 
     
        id 
        值 
       
            $link = mysql_connect("localhost","root",""); //连接数据库 
        mysql_select_db("cs");//选择哪个数据库 
        mysql_query("set names utf-8"); //设置数据库字符编码为中文 
        $sql = mysql_query("select *from persons"); 
        $pagesize = 5; //显示条数
        $sum = mysql_num_rows($sql); //判断 一共有多少条数据 
        $count = ceil($sum/$pagesize);//求出一共有多少页 
        $pages = $count; //显示最后一页 
        $init = 1; 
        $page_len = 7; 
        $max_p = $count;     
        if(empty($_GET["page"])|| $_GET["page"]            $page = 1; 
        }else{ 
            $page = $_GET["page"]; 
        } 
        $off = ($page-1)*$pagesize; //求出数据库查询的第一个数据 
        $he = mysql_query("select * from persons limit $off,$pagesize");//按照off开始,到pagesize规律显示
echo "一共 ".$sum." 条数据"; 

        while($row = mysql_fetch_array($he)){ 
        
    echo "";
    echo "".$row['id'].""; 
    echo "".$row['FirstName']."";
    echo " ";
        }
    ?>
      $page_len = ($page_len%2)?$page_len:$page_len+1;//如果余为1则为真,为0则为假 
    $pageoffset = ($page_len-1)/2;//页码偏移量
    $key ="";
if($page!=1){ 
        $key.="第一页 "; 
        $key.="上一页 "; 
    }else{ 
        $key.="第一页 "; 
        $key.="上一页 "; 
    }
    if($pages>$page_len){ 
        if($page            $init=1; 
            $max_p = $page_len; 
        }else{ 
            if($page+$pageoffset>=$pages+1){ 
                $init = $pages - $page_len+1; 
            }else{ 
                $init = $page-$pageoffset; 
                $max_p = $page + $pageoffset; 
            } 
        } 
    } 
    for($i=$init;$i        if($i==$page){ 
            $key.="[ ".$i." ]"; 
             
        }else{ 
            $key.="$i"; 
        } 
    } 
    if($i-1!=$page){ 
        $key.="下一页"; 
        $key.="最后一页"; 
    }else{ 
        $key.="下一页"; 
        $key.="最后一页"; 
    }

echo ""; 
echo "".$key."";  
echo "";
?>

     
     


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