Piwik\Plugins\SitesManager\SitesManager::getTrackerSearchKeywordParameters PHP Method

    private function getTrackerSearchKeywordParameters($website)
    {
        $searchParameters = $website['sitesearch_keyword_parameters'];
        if (empty($searchParameters)) {
            $searchParameters = API::getInstance()->getSearchKeywordParametersGlobal();
        }
        return explode(",", $searchParameters);
    }