public function getRange(): string
    {
        if (empty($this->_rangeEnd)) {
            return $this->_rangeStart;
        } else {
            return $this->_rangeStart . ',' . $this->_rangeEnd;
        }
    }
public function getRange(): string
    {
        if (empty($this->_rangeEnd)) {
            return $this->_rangeStart;
        } else {
            return $this->_rangeStart . ',' . $this->_rangeEnd;
        }
    }
public function getRange ( ) : string { if ( empty ( $ this -> _rangeEnd ) ) { return $ this -> _rangeStart ; } else { return $ this -> _rangeStart . ',' . $ this -> _rangeEnd ; } }
Get the date range comma separated

@return string
Get the date range comma separated