<?php
session_start();
include("config.php");
$errorlogin = "Field is Empty";
if(isset($_POST['submit']))
{
$user = $_POST['username'];
$pass = $_POST['password'];

if($user != "" && $pass != "")
{
	$result = mysql_query("select * from register where BINARY username='$user' and BINARY password='$pass'",$con)
or die("Could not execute the select query.");
$row = mysql_fetch_assoc($result);
if(is_array($row) && !empty($row))
{
$validuser = $row['username'];
$_SESSION['valid'] = $validuser;
}
if(isset($_SESSION['valid']))
{
echo "Welcome ".$_SESSION['valid']."!";
echo "<br/>";
echo "<a href='logout.php'>Logout</a>";
}
else{
echo "Wrong Username or Password";
}
}
else
{
$errorlogin;

}
}


?>