Untitled

<html>
<head>
<meta charset="utf-8">
<title>Log in</title>
</head>
<body>

<?php
    if(isset($POST['submitgumb'])){
        $username = $_POST['uname'];
        $password = $_POST['pass'];

        if($username=='kapica' && $password=='volk'){
            echo "<p style='color: green'>Pravilno geslo</p>";
        }
        else{
            echo "<p style='color: red'>Narobno geslo</p>";
        }
    }

?>

<form method="post">
    <input placeholder ="username" type="text" name="uname"><br>
    <input placeholder ="password" type="password" name="pass"><br>
    <button type="submit" name="submitgumb">Prijavi se</button>
</form>


</body>
</html>