<?php
$user="root";
$host="localhost";
$pass="123456";
$db="login";
$conn=  mysql_connect($host,$user,$pass) or die(mysql_error()."Database Could not Connected");
$selectdb=  mysql_select_db($db,$conn);

?>

<?php
session_start();
include 'connect.php';
if(isset($_POST['submit'])){

$user_name=$_POST["a"];
$user_pass=$_POST["b"];
$sql1="Select * from log_info where username='$user_name' AND password='$user_pass'"; // Query
$query1= mysql_query($sql1);
while($data=  mysql_fetch_array($query1)){
    $_SESSION['sess_id']=$data["ID"];
    $_SESSION['sess_user_name']=$data["username"];
    $_SESSION['sess_user_pass']=$data["password"];

}
if($_SESSION['sess_user_name'] && $_SESSION['sess_user_pass']){
header("Location:home.php");
}else{
$err= "Your Username and password are incorrect";
}
}


?>

<form action="" method="post">
    <table>
        <tr>
            <td><input type="text" name="a"/></td>
        </tr>
    <tr>
        <td><input type="password" name="b"/></td>
        </tr>
      <tr>
          <td><input type="submit" name="save"/></td>
      </tr>
    </table>


</form>

<?php
session_start();
unset($_SESSION['sess_id']);
unset($_SESSION['sess_username']);
unset($_SESSION['sess_password']);
header("Location:login.php");
?>