class employee { public $surname; public $name; public $patronymic; public function get_age() { return $this->age; } public function set_age($val) { $val = intval($val); if ($val >= 18 && $val <= 65) { $this->age = $val; return true; } else return false; } public function get_info() { return $this->surname." ".$this->name." ".$this->patronymic; } public function get_full_info() { return $this->get_info()." (".$this->age.")"; } private $age; }