public function getSearchResultsPerPageSwitchOptionsAsArray($defaultIfEmpty = [])
    {
        $result = $this->getValueByPathOrDefaultValue('plugin.tx_solr.search.results.resultsPerPageSwitchOptions', '');

        if (trim($result) === '') {
            return $defaultIfEmpty;
        }

        return GeneralUtility::intExplode(',', $result, true);
    }