我正在尝试解析从 WFS 请求到 GeoServer 的 XML（或 GML）回复。
我的目标是将 XML 提取到一个漂亮的整洁数组中，然后我可以显示、导出等。
我的 XML 如下所示：
<?xml version="1.0" encoding="UTF-8"?>
<wfs:FeatureCollection numberOfFeatures="52" timeStamp="2012-06-28T10:11:02.193Z" xsi:schemaLocation="http://squirrel.bis.local/bis_workspace http://squirrel.bis.local:8080/geoserver/wfs?service=WFS&version=1.1.0&request=DescribeFeatureType&typeName=bis_workspace%3Abis_1_priority_species http://www.opengis.net/wfs http://squirrel.bis.local:8080/geoserver/schemas/wfs/1.1.0/wfs.xsd" xmlns:opengeo="http://opengeo.org" xmlns:ogc="http://www.opengis.net/ogc" xmlns:bis_workspace="http://squirrel.bis.local/bis_workspace" xmlns:world="http://world.opengeo.org" xmlns:wfs="http://www.opengis.net/wfs" xmlns:medford="http://medford.opengeo.org" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ows="http://www.opengis.net/ows" xmlns:gml="http://www.opengis.net/gml" xmlns:usa="http://usa.opengeo.org" xmlns:xlink="http://www.w3.org/1999/xlink">
<gml:featureMembers>
<bis_workspace:bis_1_priority_species gml:id="bis_1_priority_species.fid--2f086452_138094a10a0_116d">
<bis_workspace:id>27407951</bis_workspace:id>
<bis_workspace:gridref>SN123456</bis_workspace:gridref>
<bis_workspace:species>Milvus milvus</bis_workspace:species>
<bis_workspace:common>Red Kite</bis_workspace:common>
<bis_workspace:date>2004</bis_workspace:date>
<bis_workspace:comments>
</bis_workspace:comments>
<bis_workspace:family>Accipitridae</bis_workspace:family>
</bis_workspace:bis_1_priority_species>
<bis_workspace:bis_1_priority_species gml:id="bis_1_priority_species.fid--2f086452_138094a10a0_116e">
<bis_workspace:id>28064165</bis_workspace:id>
<bis_workspace:gridref>SN123456</bis_workspace:gridref>
<bis_workspace:species>Lutra lutra</bis_workspace:species>
<bis_workspace:common>European Otter</bis_workspace:common>
<bis_workspace:date>09/11/2001</bis_workspace:date>
<bis_workspace:comments>spraint</bis_workspace:comments>
<bis_workspace:family>Mustelidae</bis_workspace:family>
</bis_workspace:bis_1_priority_species>
</gml:featureMembers>
</wfs:FeatureCollection>
我希望最终结果如下所示：
Array
(
[0] => Array
(
[id] => 27407951
[gridref] => SN123456
[species] => Milvus milvus
[common] => Red Kite
[date] => 2004
[comments] =>
[family] => Accipitridae
)
[1] => Array
(
[id] => 28064165
[gridref] => SN123456
[species] => Lutra lutra
[common] => European Otter
[date] => 09/11/2001
[comments] => spraint
[family] => Mustelidae
)
[2] => Array
(
[id] => 27516850
[gridref] => SN123456
[species] => Tyto alba
[common] => Barn Owl
[date] => 2004
[comments] => Pair, nest box in tree, 2 chicks
[family] => Tytonidae
)
)
等等等等
我正在使用以下代码 - 确实有效 - 但它似乎效率低下。对于 XML 中的每条记录，代码都必须解析整个 XML 回复。如果只有 20-30 条记录，这很好，但这个 XML 回复可能包含数千条记录。
有没有一种方法可以只扫描 XML 文件 1 次来构建这个数组？
这是PHP：
//Parse the XML
$xml = simplexml_load_string($wfs_reply, NULL, NULL, "http://squirrel.bis.local/bis_workspace");
$xml->registerXPathNamespace('wfs', 'http://www.opengis.net/wfs');
$xml->registerXPathNamespace('gml', 'http://www.opengis.net/gml');
$xml->registerXPathNamespace('bis_workspace', 'http://squirrel.bis.local/bis_workspace');
$count = 0;
$feature_members_array = array();
$feature_members_layer_path = "//bis_workspace:" . $layer_name; //I.e. '//bis_workspace:bis_1_priority_species'
foreach($xml->xpath($feature_members_layer_path) as $feature_members_raw)
{
$feature_member_id = $feature_members_raw->xpath('//bis_workspace:id');
$feature_members_array[$count]['id'] = (string)$feature_member_id[$count];
$feature_member_gridref = $feature_members_raw->xpath('//bis_workspace:gridref');
$feature_members_array[$count]['gridref'] = (string)$feature_member_gridref[$count];
$feature_member_species = $feature_members_raw->xpath('//bis_workspace:species');
$feature_members_array[$count]['species'] = (string)$feature_member_species[$count];
$feature_member_common = $feature_members_raw->xpath('//bis_workspace:common');
$feature_members_array[$count]['common'] = (string)$feature_member_common[$count];
$feature_member_date = $feature_members_raw->xpath('//bis_workspace:date');
$feature_members_array[$count]['date'] = (string)$feature_member_date[$count];
$feature_member_comments = $feature_members_raw->xpath('//bis_workspace:comments');
$feature_members_array[$count]['comments'] = (string)$feature_member_comments[$count];
$feature_member_family = $feature_members_raw->xpath('//bis_workspace:family');
$feature_members_array[$count]['family'] = (string)$feature_member_family[$count];
$count ++;
}
非常感谢，史蒂夫