<?php
class checklogin
{
  var $name;
  var $pwd;
  function __construct($username,$password)
  {
   $this->name=$username;
   $this->pwd=$password;
  }
  function checkinput()
  {
   global $db;
   $sql=\"select * from tb_manager where name=\'$this->name\' and pwd=\'$this->pwd\'\";
   $res=$db->query($sql);
   $info=$db->fetch_array($res); 
   if($info[\'name\']==$this->name and $info[\'pwd\']==$this->pwd)
   {
     $_SESSION[admin_name]=$info[name];
     $_SESSION[pwd]=$info[pwd];
     echo \"<script>alert(\'登录成功！);window.location.href=\'index.php\';</script>\";
   }
   else
   {
     echo \"<script language=\'javascript\'>alert(\'登录失败！\');history.back();</script>\";
     exit;
   }
  }
}
?>