php(一)

把数据库的信息传到网页上。

if(isset($_POST['submit']))

{$user = $_POST['user'];   

  $pwd = $_POST['pwd'];    

$chk = 100;  

if(isset($_POST['chktime'])){  

       $chk = $_POST['chktime'];

    }

    $sql = "select count(*) from users where userName='$user' and password='$pwd'";  

   $r = mysql_query($sql);   

  $row = mysql_fetch_row($r);  

   if($row[0]){  

       setcookie("mycook",$user,time()+$chk);  

   }

mysql_fetch_array($result);把result转化成数组，0，1,2,3,4....对应着字段名
mysql_fetch_row($result);把result转化成数组，只有0,1,2,3,4...不对应数据名