ปัญหา endcode อีกแล้วค่ะ .... คือว่าที่พวกเพื่อนๆ มีปัญหาเกียวกับ mysql 5.x+php+phpmyAdmin กัน

<?php
session_start();

$username = $_POST['username'];
$pass = $_POST['pass'];

include"connect.php";
mysql_select_db("db_nsc");
mysql_query("SET NAMES UTF8");
$sql = "
SELECT * FROM tb_user
WHERE Username = '$username' AND Password = '$pass' AND Status_user NOT IN ('Admin');";

$result = mysql_query($sql);

$response = "";
if(mysql_num_rows($result)==0) {
$response = "alert('Login หรือ Password ไม่ถูกต้อง')";
}
else {
$member = mysqli_fetch_array($result);
$_SESSION['id'] = $member['id'];
$_SESSION['Username'] = $member['Username'];
$_SESSION['Name_user'] = $member['Name_user'];

$cookie_name = "Username";
if(isset($_POST['store_login'])) {

$value = $member['Username'];
$expire = time() + 30*24*60*60;
setcookie($cookie_name, $value, $expire);
}
else {
setcookie($cookie_name, '', 0);
}

$response = "hideForm();";
}

mysql_close($cn);
#echo $response;
?>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<?=$response?>

<?
session_start () ;

//mysql_query("SET NAMES UTF8");
$user=$_POST[user];
$pass=$_POST[pass];
include"connect.php";
mysql_select_db("db_nsc");
mysql_query("SET NAMES UTF8");

$sql="SELECT * FROM tb_user 
	WHERE Username='$user' AND Password='$pass' AND Status_user='Admin';";
$result=mysql_query($sql) ;

If(mysql_num_rows($result)==0)  {
	   Echo "<h3>ERROR  :  Username  หรือ  Password  ผิด</h3>";

}else{
	  Echo  "<H3>Login Success</H3>";
}
mysql_close($cn);
?>