Item::get_longitude(): string|null

2330    public function get_longitude()2331    {2332        if ($return = $this->get_item_tags(\SimplePie\SimplePie::NAMESPACE_W3C_BASIC_GEO, 'long')) {2333            return (float) $return[0]['data'];2334        } elseif ($return = $this->get_item_tags(\SimplePie\SimplePie::NAMESPACE_W3C_BASIC_GEO, 'lon')) {2335            return (float) $return[0]['data'];2336        } elseif (($return = $this->get_item_tags(\SimplePie\SimplePie::NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match)) {2337            return (float) $match[2];2338        }2339 2340        return null;2341    }