array('required' => true, 'regex' => '/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/')
            ));
            if ($validator->isValid($_POST)) {
                $statementMembership = $RUNTIME['PDO']->prepare("DELETE FROM Friends WHERE Friend = ? AND PrincipalID = ?");
                $statementMembership->execute(array($_REQUEST['uuid'], $_SESSION['UUID']));
        
                $statementMembership = $RUNTIME['PDO']->prepare("DELETE FROM Friends WHERE PrincipalID = ? AND Friend = ?");
                $statementMembership->execute(array($_REQUEST['uuid'], $_SESSION['UUID']));
            }
        }
        header('Location: index.php?page=friends');
        die();
    }
    $HTML->setHTMLTitle("Deine Freunde");
    $HTML->importSeitenInhalt("online-anzeige.html");
    $table = '
';
    
    $statement = $RUNTIME['PDO']->prepare("SELECT PrincipalID,Friend FROM Friends WHERE PrincipalID = ? ORDER BY Friend ASC");
    $statement->execute([$_SESSION['UUID']]);
    include_once 'app/OpenSim.php';
    $opensim = new OpenSim();
    while ($row = $statement->fetch()) {
        $PrincipalID = explode(";", $row['PrincipalID'])[0];
        $FriendData = explode(";", $row['Friend']);
        $Friend = $FriendData[0];
        $name = trim($opensim->getUserName($Friend));
        if (count($FriendData) > 1) {
            $FriendData[1] = str_replace("http://", "", $FriendData[1]);
            $FriendData[1] = str_replace("https://", "", $FriendData[1]);
            $FriendData[1] = str_replace("/", "", $FriendData[1]);
            $name = $name.' @ '.strtolower($FriendData[1]);
        }
        $entry = '| '.htmlspecialchars($name).' |  | 
';
        $table = str_replace("%%ENTRY%%", $entry."%%ENTRY%%", $table);
    }
    $table = str_replace("%%ENTRY%%", "", $table);
    $HTML->ReplaceSeitenInhalt("%%ONLINE-LIST%%", $table);
    $HTML->build();
    echo $HTML->ausgabe();