<?php
if(isset($_POST['username']) AND isset ($_POST['password']))
{

if(empty($_POST['username']) AND empty($_POST['username']))
{
echo "<a href= 'index.php'>Je bent wat vergeten in te vullen.<br>";

}
else{
$username = "Erwin";
$password = "lol123";

$post_username = $_POST['username'];
$post_password = $_POST['password'];
//controle
if ($post_username == $username AND $post_password == $password){
 echo "je bent succesvol ingelogd!";
}
else {
	echo "Gebruikersnaam of wachtwoord onjuist";
	echo "<a href = 'index.php'> Terug</a>";
		}
	}
}
else{
	header("location: index.php");
	}
?>