private function getQueryText()
    {
        $queryText = trim(strtolower((string) $this->getRequest()->getParam('query_text_preview', '')));

        if ($queryText == '') {
            $queryText = null;
        }

        return $queryText;
    }
private function getQueryText()
    {
        $queryText = trim(strtolower((string) $this->getRequest()->getParam('query_text_preview', '')));

        if ($queryText == '') {
            $queryText = null;
        }

        return $queryText;
    }
private function getQueryText ( ) { $ queryText = trim ( strtolower ( ( string ) $ this -> getRequest ( ) -> getParam ( 'query_text_preview' , '' ) ) ) ; if ( $ queryText == '' ) { $ queryText = null ; } return $ queryText ; }
Return the query text to preview.

@return string
Return the query text to preview .