php中的登陸login，php登陸login_PHP教程

php中的登陸login，php登陸login

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php require "../include/DBClass.php"; $username=$_POST['UserName']; $password=$_POST['Password']; if(empty($username) || empty($password)){   Go_Msg("請填寫使用者名稱，密碼！","../default.html");   exit;  } DBConn(); $password=md5($password); $SQL = "Select UserName,UserType,UserPass From siteuser where UserName='" . $username ."' and UserPass='" . $password . "' and isopen=1"; //echo "$SQL"; $result = $db -> exec_SQL($SQL);  $total=mysql_num_rows($result);  if($total==0){   DBClose();   Go_Msg("註冊使用者還沒有通過管理員審核或使用者名稱及密碼不符！請重新輸入！","../default.html");   exit;  }else{   $Rs = $db -> fetch_array($result);   //附值，並登入   session_register("username");   session_register("usertype");   $_SESSION["usertype"]=$Rs['UserType'];   $_SESSION["username"]=$username;   //echo $_SESSION["username"];   if ($_SESSION["usertype"]==1){     Go_Msg("登陸成功！","default.php");     //header('Location:http://163.com');   }   if ($_SESSION["usertype"]==2){      Go_Msg("登陸成功！","../user2/default_1.php");   }   if ($_SESSION["usertype"]==3){      Go_Msg("登陸成功！","../user3/default_2.php");   }   // header('Location:default.php');  } DBClose(); // 何問起 hovertree.com?>  

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