Easy way to make login with php

- method is use uer name and pass write in php file
- no create user table in database
// this is my code

<?php
//use Post
$username = $_POST["Username"];
$password = $_POST["Password"];



session_start();

?>

<?php

if($username=='blog' and $password=='12345678' )

{
$_SESSION["username"]=$username;
$_SESSION["password"]=$password ;


echo "<script>location='../adminpanel'</script>";

}
else
{ echo "<script>location='./'</script>"; }

?>

<?php 

echo $loginsucess;echo "<BR>";
echo "Session Login"; echo "<BR>";
echo $_SESSION["username"];echo "<BR>";
echo $_SESSION["password"];



?>