<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title> Zadej jmeno </title>
</head>
<body>
<form name="login" method="POST" action="index.php">
Jmeno: <input type="text" name="Fname" /> <br/>
Prijmeni: <input type="text" name="Sname" /> <br/>
<input type="submit" value="Prihlasit" />
</form>
<?php
$Fname = $_POST['Fname'];
$Sname = $_POST['Sname'];
$file = fopen('KdoPrisel.txt', 'a');
fwrite($file, "Jmeno: $Fname $Sname");
?>
</body>