//用函数读出数据表内容放入二维数组
//动态sql语句
//以读出点击次数表为例。

function list_hit($fields,$where,$order,$direction,$limit,$conn)
{
if ($fields=="") {$fields="hit_id,banner_id,hit_ip,hit_time";}
if ($order=="") {$direction="";}

$sql="select $fields from hit $where $order $direction $limit";
//echo $sql;
$res=mysql_query($sql,$conn);
$i=0;
$list_hit[$i]["rows"]=mysql_num_rows($res);
$i++;
while($rs=mysql_fetch_array($res))
{
$list_hit[$i]["hit_id"]=$rs["hit_id"];
$list_hit[$i]["banner_id"]=$rs["banner_id"];
$list_hit[$i]["hit_ip"]=$rs["hit_ip"];
$list_hit[$i]["hit_time"]=$rs["hit_time"];
$i++;
}
return $list_hit;
}