class GuestBook {
public $text;

public function __constract {
$a = fopen ( __DIR__ . /guestbook.txt, 'r');
}

public function getData() {
$b = file ( __DIR__ . /guestbook.txt);
return $b;
}

public function append($text) {
$c = fopen ( __DIR__ . /guestbook.txt, 'a');
fwrite ( $c, $this->text );
fclose ( $c );
}

public function save() {
}

}