<?php
if(isset($_POST['btnsubmit']))
{
$usernamefrmdw=$_POST['Uname'];
$pswfrmdw=$_POST['pw'];
$host='localhost';
$user='root';
$pwd='';
$db='aocourse';
$conn=mysqli_connect($host,$user,$pwd,$db);
$sql="select username,password from new where username='$usernamefrmdw' and password='$pswfrmdw'";
$res=mysqli_query($conn,$sql);

if($usernamefrmdw=='admin' && $pswfrmdw=='admin')
{
   header("Location:addfile1.php?id=$usernamefrmdw");
   exit;
}
}
?>