PHP登录后重定向

accounts.mysite.com

我想要的是该子域的一个登录面板,然后在用户登录后将它们引导到他们自己的页面(并阻止他们查看“其他帐户”页面).

所以当他们去account.mysite.com时,这是登录页面.用户使用特定名称登录,通过.成功登录后,将其导入其帐户页面,但会阻止所有其他页面.

这是我到目前为止所拥有的

<?php
ob_start();
$host="localhost"; // Host name
$username="******"; // Mysql username
$password="*******"; // Mysql password
$db_name="medpro_test"; // Database name
$tbl_name="members"; // Table name

// Connect to server and select databse.
mysql_connect("$host","$username","$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// Define $myusername and $mypassword 
$myusername=$_POST['myusername']; 
$mypassword=$_POST['mypassword']; 

// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);

$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword,table row must be 1 row

if($count==1){
// Register $myusername,$mypassword and redirect to file 
session_register("myusername");
session_register("mypassword"); 
header('Location: user.php?id=' . $_SESSION['user_id']); 
}

else {
$result = MYSQL_QUERY($sql) or die('Query failed: ' . mysql_error() . "<br />n$sql");
echo "Wrong Username or Password";
}

ob_end_flush();
?>

我是一个菜鸟所以任何帮助将不胜感激！