PHP+MySQL基本分页显示

Posted 2021-05-16 royal_coffee

1.建立连接
2.设定每页显记录数n
3.查询数据
4.关闭连接

每页n条记录，显示第i页,开始记录数s=?
s = ( $i - 1 ) * n

 

<? php
     $connect   =   mysql_pconnect ( " localhost " ,   " root " ,   " root " );
     mysql_select_db ( " UserInfo " ,   $connect );

     $page_num   =   10 ;  //  每页记录数
     if ( ! $page_no ){
         $page_no   =   1 ;
    }

     $start_num   =   $page_num   *  ( $page_no   -   1 )  //  页号$page_no

     $sql   =   " select * from UserInfo limit $start_num, $page_num "
     $result   =   mysql_query ( $sql );
     $rows   =  @ mysql_num_rows ( $result );

     for ( $i = 0 ;  $i < $rows ;  $i ++ ){
        @ mysql_data_seek ( $result ,   $i );
         $data   =  @ mysql_fetch_array ( $result );
         echo   " <pre " ;
         echo   " id: $data[id], username: $data[username],  " ;
         echo   " password: $data[password], name: $data[name] " ;
         echo   " </pre> " ;
    }
     echo   " <a href='exa9-1.php?page_no= "   .  ( $page_no - 1 )  .   " '>上一页</a>$nbsp;$nbsp;$nbsp;<a href='exa9-1.php?page_no= "   .   " '>下一页</a><br> " ;
?>