如何检索特定的XML标记名称？

Question

上面的Feed返回一个XML文档。我可以使用这些代码成功检索标题名称，如标题，描述和链接

tf.reduce_sum(tf.squared_difference(Y1, Y2))

我如何获得 $xml = file_get_contents($feed_url); $xml = trim($xml); $xmlObject = new SimpleXmlElement($xml); foreach ($xmlObject->channel->item as $item) { $title = strip_tags($item->title); $description = strip_tags($item->description); } ？

<a10:updated>

Answer 1

您正在查看其他XML命名空间。您可以使用大括号来访问它：

SELECT fp.entity_id AS id, target_id AS arrival, MIN(value) AS price    
FROM flights_arrival AS fa
INNER JOIN flights_price AS fp ON (fp.entity_id = fa.entity_id)
GROUP BY target_id;