Method validate

connection-examples/php/state.php:58–66

($timestamp)

  }

  public function validate($timestamp) {
    if (!$this->valid) {
      throw new Exception("Invalid state.");
    } elseif ($timestamp < $this->timestamp) {
      echo "Invalid timestamp.";
      $this->valid = false;
      throw new Exception("Update with timestamp ($timestamp) is lower than the last timestamp ({$this->timestamp}). Invalid state.");
    }
  }

  public function process(Update $update) {
    $value = json_encode($update->getValue());