public function maybeCreateExportFolders()
    {
        if (!is_writable($this->exportFolder)) {
            trigger_error('The export folder (' . $this->exportFolder .') is not writable. Exports will not be saved.', E_USER_ERROR);
        }

        if (!file_exists($this->exportFolder . 'json')) {
            mkdir($this->exportFolder . 'json');
            chmod($this->exportFolder . 'json', 0777);
        }

        if (!file_exists($this->exportFolder . 'php')) {
            mkdir($this->exportFolder . 'php');
            chmod($this->exportFolder . 'php', 0777);
        }
    }