Übung 7b1
<?php
include("sauber.inc");
if(isset($_POST["anmelden"])) {
$nick = sauber($_POST["nickname"]);
if ($nick) {
header("Location: chatroom.php?nick=".$nick);
} else {
header("Location: anmeldung.php?error=1");
}
} else {
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>PHP-Kurs</title>
</head>
<body>
<p>Hier anmelden:</p>
<form method="post" action="<?php echo $_SERVER["PHP_SELF"]; ?>">
<input type="text" size="20" maxlength="255" name="nickname"><br>
<input type="submit" name="anmelden" value="anmelden">
</form>
<?php
if(isset($_GET['error'])) {
echo "Kein gültiger Nickname, versuchs noch mal!";
?>
</body>
</html>
<?php
}
?>