本文介绍了如何使用命名空间解析
问题描述
这是我尝试使用 PHP simple</description> 标记并且不返回其余的
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and Adventure"}</ngsTax:subject><ngsTax:title>NG Live!:北极酋长</ngsTax:title><wpf:allTaxonomyId>18160</wpf:allTaxonomyId><wpf:allTaxonomyId>1589</wpf:allTaxonomyId><wpf:allTaxonomyId>858</wpf:allTaxonomyId><wpf:altLinkedLegacyUrl/><wpf:作者/><wpf:firstPublishedTime>2013 年 5 月 13 日星期一 19:11:17 GMT</wpf:firstPublishedTime><wpf:id>13615</wpf:id><wpf:lastPublishedTime>2014 年 2 月 3 日星期一 21:50:20 GMT</wpf:lastPublishedTime><wpf:lineupName>Nat Geo Live 2</wpf:lineupName><wpf:locationMigration>北极</wpf:locationMigration><wpf:locationMigration>南极</wpf:locationMigration><wpf:metaKeyword>Nat Geo Live</wpf:metaKeyword><wpf:metaKeyword>Nat Geo Live!</wpf:metaKeyword><wpf:metaKeyword>讲座</wpf:metaKeyword><wpf:metaKeyword>国家地理直播</wpf:metaKeyword><wpf:metaKeyword>国家地理直播！</wpf:metaKeyword><wpf:metaKeyword>NGLive</wpf:metaKeyword><wpf:metaKeyword>NG直播</wpf:metaKeyword><wpf:metaKeyword>Nat Geo Events</wpf:metaKeyword><wpf:metaKeyword>Børge Ousland</wpf:metaKeyword><wpf:metaKeyword>polar</wpf:metaKeyword><wpf:metaKeyword>冒险</wpf:metaKeyword><wpf:metaKeyword>探索</wpf:metaKeyword><wpf:metaKeyword>探索</wpf:metaKeyword><wpf:metaKeyword>远征</wpf:metaKeyword><wpf:metaKeyword>滑雪</wpf:metaKeyword><wpf:metaKeyword>北极</wpf:metaKeyword><wpf:metaKeyword>孤独</wpf:metaKeyword><wpf:metaKeyword>奇怪的</wpf:metaKeyword><wpf:metaKeyword>访问者</wpf:metaKeyword><wpf:metaKeyword>ice</wpf:metaKeyword><wpf:metaKeyword>照片</wpf:metaKeyword><wpf:metaKeywords>Nat Geo Live，Nat Geo Live！，讲座，国家地理直播，国家地理直播！，NGLive，NG Live，Nat Geo Events，Børge Ousland，极地，冒险，探索，探索，远征，滑雪，北极，孤独，陌生，访客，冰，照片</wpf:metaKeywords><wpf:organizationMigration>国家地理直播</wpf:organizationMigration><wpf:sitePath>Specials Video::Nat Geo Live::Nat Geo Live 2</wpf:sitePath><wpf:siteUrlPath>/video/specials/nat-geo-live-specials/nat-geo-live-2/ousland-sheikh-bonus-nglive/</wpf:siteUrlPath><wpf:subjectMigration>Explorer</wpf:subjectMigration><wpf:subjectMigration>Expeditions</wpf:subjectMigration><wpf:subjectMigration>旅行</wpf:subjectMigration><wpf:taxonomyId>18160</wpf:taxonomyId><ytcp:youTubeAssetType>web</ytcp:youTubeAssetType><ytcp:youTubeSavedMatchRights>在所有国家/地区获利</ytcp:youTubeSavedMatchRights><ytcp:youTubeSavedUsageRights>在所有国家/地区获利</ytcp:youTubeSavedUsageRights></项目></频道></rss>这是我的代码
函数 parse 解决方案
您不会得到所有节点，因为它们使用命名空间，例如:pl:id.要解析这些，您可以使用 Xpath.第一个示例获取所有 pl: added 第二个获取 media:hash.
如果您知道文件将始终使用相同的前缀，则只能使用以下内容.如果没有，您必须为您使用的每个 simple
xpath('//pl: added');}//输出$已添加echo "";var_dump($add);//获取 media:hashforeach($xpath('//media:thumbnail') as $element) {$hash = $element->xpath('//media:hash');}//输出$hashecho "";var_dump($hash);?>
当您需要注册命名空间时，您可以执行以下操作.首先，您可以对命名空间进行 var dump，以便您知道需要使用哪个 url.
["os"]=>string(36) "http://a9.com/-/spec/opensearch/1.1/" 所以对于 os，你需要那个 url.>
";//var_dump($namespaces);$registerXPathNamespace('media', 'http://search.yahoo.com/mrss/');foreach($xpath('//media:content') as $element) {$element->registerXPathNamespace('pl', 'http://xpath('//pl: added');}echo "";var_dump($add);$registerXPathNamespace('media', 'http://search.yahoo.com/mrss/');foreach($xpath('//media:thumbnail') as $element) {$element->registerXPathNamespace('media', 'http://search.yahoo.com/mrss/');$hash = $element->xpath('//media:hash');}echo "";var_dump($hash);?>
This is my </description> tag and rest of the
<?
here is my code
function parse
解决方案 You won't get all nodes because they use namespaces, for exmple: pl:id. To parse these you could use Xpath. first example grabs all pl:added second one gets media:hash.
You can only use the following if you know the file will always use the same prefix. If not, you have to register the namespace for each simple
<?
$str = '*your string here*';
$
When you need to register namespaces you can do the following. First you can var dump the namespaces so you know which url you need to use.
["os"]=>string(36) "http://a9.com/-/spec/opensearch/1.1/" So for os you need that url.
<?
$str = '*your string here*';
$
这篇关于如何使用命名空间解析
08-13 06:58