如何使用命名空间解析 XML? [英] How to parse XML with namespace?
本文介绍了如何使用命名空间解析 XML?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
这是我尝试使用 PHP simplexml_load_string() 函数类解析的 xml 文件，但它只打印 </description> 标记并且不返回其余的 xml
XML 文件:
<频道><title>NG视频</title><link>http://feed.theplatform.com/f/ngs/dCCn2isYZ9N9</link><description>NG 视频</description><os:startIndex>1</os:startIndex><os:itemsPerPage>100</os:itemsPerPage><pllist:entryCount>1</pllist:entryCount><项目><pl:id>http://data.media.theplatform.com/media/data/Media/97681476000</pl:id><guid isPermaLink="false">a4ad87f6-cbe4-4816-9580-b6679af0ea73</guid><title>NG Live!:北极酋长</title><描述><p>Børge Ousland 完成了比地球上任何人都多的单人旅行到波兰的旅行，有时他会惊讶于他遇到了穿越广阔的北极苔原的人.</p></描述><作者/><媒体:关键词/><media:restriction relationship="deny" type="country"/><media:content channels="2" samplingrate="44.1" bitrate="535.928" medium="video" duration="175.031" expression="full" fileSize="11725511" framerate="29.97" type="video/mp4" height="346" isDefault="true" url="http://link.theplatform.com/s/ngs/ekLOLGt3bemU?feed=NG%20Video" width="616"><media:hash algo="md5">0AF4AD25977BF50888075D3547F67173</media:hash><pl: added>星期日，2013 年 12 月 22 日 02:41:46 GMT</pl: added><plfile:assetType>mpeg4</plfile:assetType></media:content><media:thumbnail expression="full" fileSize="79478" type="image/jpeg" height="556" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_990x556_177596483623.jpg" width="990"><media:hash algo="md5">60FFCE1C849440050CBCBD259EF2CE65</media:hash><pl: added>星期日，2014 年 3 月 2 日 05:26:41 GMT</pl: added><plfile:assetType>海报</plfile:assetType><plfile:assetType>MED</plfile:assetType></media:thumbnail><media:thumbnail expression="full" fileSize="209762" type="image/jpeg" height="720" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720.jpg" width="1280"><media:hash algo="md5">08AC83096DC5F7E48A7CDE4BFA23A27A</media:hash><pl: added>星期日，2014 年 3 月 2 日 05:26:30 GMT</pl: added><plfile:assetType>夹层图像</plfile:assetType></media:thumbnail><media:thumbnail expression="full" fileSize="2962" type="image/jpeg" height="68" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_120x68_177597507564.jpg" width="120"><media:hash algo="md5">605D86F9A2B606D97A653576E6CE99D2</media:hash><pl: added>星期日，2014 年 3 月 2 日 05:26:45 GMT</pl: added><plfile:assetType>缩略图</plfile:assetType></media:thumbnail><media:thumbnail expression="full" fileSize="23707" type="image/jpeg" height="270" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_480x270_177598019578.jpg" width="480"><media:hash algo="md5">73F78D0314E0CC15CDA5C36AAE4560AD</media:hash><pl: added>星期日，2014 年 3 月 2 日 05:26:42 GMT</pl: added><plfile:assetType>海报</plfile:assetType><plfile:assetType>X-SM</plfile:assetType></media:thumbnail><media:thumbnail expression="full" fileSize="83905" type="image/jpeg" height="576" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_1024x576_177598019579.jpg" width="1024"><media:hash algo="md5">5C4B05CE487697A63F4FEC8B51009497</media:hash><pl:已添加>星期日，2014 年 3 月 2 日 05:26:43 GMT</pl:已添加><plfile:assetType>海报</plfile:assetType><plfile:assetType>LG</plfile:assetType></media:thumbnail><media:thumbnail expression="full" fileSize="114846" type="image/jpeg" height="720" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_1280x720_177598019580.jpg" width="1280"><media:hash algo="md5">31BFBD1020B2277B7E6FDD353973F263</media:hash><pl: added>Sun, 02 Mar 2014 05:26:43 GMT</pl: added><plfile:assetType>海报</plfile:assetType><plfile:assetType>X-LG</plfile:assetType></media:thumbnail><media:thumbnail expression="full" fileSize="37132" type="image/jpeg" height="360" isDefault="true" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_640x360_177598019582.jpg" width="640"><media:hash algo="md5">2654AFBE193785E29FF0533CF977A473</media:hash><pl: added>星期日，2014 年 3 月 2 日 05:26:44 GMT</pl: added><plfile:assetType>海报</plfile:assetType><plfile:assetType>SM</plfile:assetType></media:thumbnail><pubDate>星期六，2013 年 12 月 21 日 06:56:49 GMT</pubDate><plmedia:defaultThumbnailUrl>http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_640x360_177598019582.jpg</plmedia:defaultThumbnailUrl</plmedia:defaultThumbnailUrl<<plmedia:provider/><pl1:youTubeInStreamStandard>true</pl1:youTubeInStreamStandard><pl1:youTubeInStreamTrueView>true</pl1:youTubeInStreamTrueView><pl1:youTubeInVideo>true</pl1:youTubeInVideo><pl1:youTubePublic>false</pl1:youTubePublic><ngs:clipTypeOld>none</ngs:clipTypeOld><ngs:contentCreationDate>2013 年 5 月 13 日星期一 19:03:22 GMT</ngs:contentCreationDate><ngs:network>NGS</ngs:network><ngs:redirectToExternal>从不</ngs:redirectToExternal><ngs:requiresAuth>false</ngs:requiresAuth><ngs:series>{"updated_datetime":null,"creation_datetime":null,"is_active":false,"name":"National Geographic Live","translated_names":[],"synonyms":[],"uuid":null,"notes":null,"objectType":"org.ngs.video.Show","groups":[],"url":null}</ngs:series><ngs:seriesName>国家地理直播</ngs:seriesName><ngsTax:location>{"updated_datetime":"2014-04-03T19:09:42.570Z","is_active":true,"creation_datetime":"2013-11-28T20:27:32.077Z","parent":"http://taxonomy.nationalgeographic.com/api/v1/locations/eea9ad49-32fc-3a7c-bf15-cfeabdaa2fb7","geonames_uri":null,"url":"http://taxonomy.nationalgeographic.com/api/v1/locations/ff4e742f-46e6-3867-be8c-003a7af8f86c","dbpedia_uri":"http://dbpedia.org/page/Arctic","name":"北极","经度":0.0,"层次结构":"地球/北极/","纬度":0.0,"uuid":"ff4e742f-46e6-3867-be8c-003a7af8f86c","notes":"","objectType":"org.ngs.taxonomy.GeoLocation","groups":["Place","region"],"english_name":null,"parentName":"Earth"}</ngsTax:location><ngsTax:location>{"updated_datetime":"2014-05-28T20:43:43.719Z","is_active":true,"creation_datetime":"2013-11-28T20:01:26.936Z","synonyms":[null,null],"parent":"http://taxonomy.nationalgeographic.com/api/v1/locations/eea9ad49-32fc-3a7c-bf15-cfeabdaa2fb7","geonames_uri":"http://sws.geonames.org/6697173/","url":"http://taxonomy.nationalgeographic.com/api/v1/locations/d2ce52aa-c6ac-3a13-9f8c-59cb13ecb924","dbpedia_uri":null,"name":"Antarctica","translated_names":[null],"longitude":16.40626,"hierarchy":"earth/antarctica/","latitude":-78.15856,"uuid":"d2ce52aa-c6ac-3a13-9f8c-59cb","notes":"","objectType":"org.ngs.taxonomy.GeoLocation","groups":["地方","大陆"],"english_name":null,"parentName":"地球"}</ngsTax:location><ngsTax:organization>{"updated_datetime":"2014-05-02T15:37:25.776Z","creation_datetime":"2013-11-28T19:40:52.694Z","is_active":true,"name":"National Geographic Live","synonyms":[null],"uuid":"bae34d69-0601-342b-abe4-345c4c2486c4","notes":"","objectType":"org.ngs.taxonomy.Organization","english_name":null,"groups":["Organization"],"url":"http://taxonomy.nationalgeographic.com/api/v1/organizations/bae34d69-0601-342b-abe4-345c4c2486c4"}</ngsTax:organization><ngsTax:slug>ousland-sheikh-bonus-nglive</ngsTax:slug><ngsTax:subject>{"updated_datetime":"2014-06-04T15:56:21.047Z","definition":"","is_active":true,"creation_datetime":"2013-11-28T19:59:40.956Z","scope_note":"","synonyms":[null],"parent":"http://taxonomy.nationalgeographic.com/api/v1/subjects/83bf00d5-93bd-3cca-acc3-543652f06d52","url":"http://taxonomy.nationalgeographic.com/api/v1/subjects/58f9272e-f37b-3550-a228-a5ee119553ae","name":"Explorers","hierarchy":"exploration/explorers/","uuid":"58f9272e-f37b-3550-a228-a5ee119553ae","notes":"","objectType":"org.ngs.taxonomy.Subject","groups":["Subject"],"english_name":null,"parentName":"Exploration"}</ngsTax:subject><ngsTax:subject>{"updated_datetime":"2014-01-29T14:56:08.338Z","definition":"","is_active":true,"creation_datetime":"2013-11-28T19:52:45.402Z","scope_note":"","parent":"http://taxonomy.nationalgeographic.com/api/v1/subjects/83bf00d5-93bd-3cca-acc3-543652f06d52","url":"http://taxonomy.nationalgeographic.com/api/v1/subjects/83c5f238-8dbc-373e-9d62-4deb4c59e122","name":"Expeditions","hierarchy":"exploration/expeditions/","uuid":"83c5f238-8dbc-373e-9d62-4deb4c59e122","notes":"","objectType":"org.ngs.taxonomy.Subject","groups":["Subject"],"english_name":null,"parentName":"探索"}</ngsTax:subject><ngsTax:subject>{"updated_datetime":"2014-02-10T19:47:37.384Z","definition":"","is_active":true,"creation_datetime":"2014-01-16T17:48:21.375Z","scope_note":"","synonyms":[null,null,null],"parent":"http://taxonomy.nationalgeographic.com/api/v1/subjects/a817863e-de0f-3ffd-944d-c75ed20308ff","url":"http://taxonomy.nationalgeographic.com/api/v1/subjects/f0c33fd8-5e31-36b2-9229-b71628df3367","name":"Travel","hierarchy":"旅行和冒险/旅行/","uuid":"f0c33fd8-5e31-36b2-9229-b71628df3367","notes":"","objectType":"org.ngs.taxonomy.Subject","groups":["Subject"],"english_name":null,"parentName":"Travel 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 parsexml($xml){$xmlparse=simplexml_load_string($xml)var_dump($xmlparse);} 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 simpleXMLElement 对象注册命名空间.
<代码>xpath('//media:content') as $element) {$ added = $element->xpath('//pl: added');}//输出$已添加echo "";var_dump($add);//获取 media:hashforeach($xml->xpath('//media:thumbnail') as $element) {$hash = $element->xpath('//media:hash');}//输出$hashecho "";var_dump($hash);?>
当您需要注册命名空间时，您可以执行以下操作.首先，您可以对命名空间进行 var dump，以便您知道需要使用哪个 url.
["os"]=>string(36) "http://a9.com/-/spec/opensearch/1.1/" 所以对于 os，你需要那个 url.>
<代码>getNamespaces(true);//echo "";//var_dump($namespaces);$xml->registerXPathNamespace('media', 'http://search.yahoo.com/mrss/');foreach($xml->xpath('//media:content') as $element) {$element->registerXPathNamespace('pl', 'http://xml.theplatform.com/data/object');$ added = $element->xpath('//pl: added');}echo "";var_dump($add);$xml->registerXPathNamespace('media', 'http://search.yahoo.com/mrss/');foreach($xml->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 xml file which I'm trying to parse using PHP simplexml_load_string() function class but it only print </description> tag and rest of the xml is not returned
XML file:
<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dfpvideo="http://api.google.com/dfpvideo" xmlns:media="http://search.yahoo.com/mrss/" xmlns:ngc="http://xml.natgeotv.com/fields" xmlns:ngs="http://prod.ngs.org/ngs" xmlns:ngsDebug="http://prod.ngs.org/ngs-debug" xmlns:ngsTax="http://prod.ngs.org/taxonomy" xmlns:os="http://a9.com/-/spec/opensearch/1.1/" xmlns:pl="http://xml.theplatform.com/data/object" xmlns:pl1="http://access.auth.theplatform.com/data/Account/2388557369" xmlns:pl2="http://access.auth.theplatform.com/data/Account/2423130747" xmlns:pla="http://xml.theplatform.com/data/object/admin" xmlns:plfile="http://xml.theplatform.com/media/data/MediaFile" xmlns:pllist="http://xml.theplatform.com/data/list" xmlns:plmedia="http://xml.theplatform.com/media/data/Media" xmlns:plrelease="http://xml.theplatform.com/media/data/Release" xmlns:wpf="http://prod.ngs.org/wpf" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ytcp="http://www.youtube.com/schemas/cms/2.0" version="2.0">
<channel>
<title>NG Video</title>
<link>http://feed.theplatform.com/f/ngs/dCCn2isYZ9N9</link>
<description>NG Video</description>
<os:startIndex>1</os:startIndex>
<os:itemsPerPage>100</os:itemsPerPage>
<pllist:entryCount>1</pllist:entryCount>
<item>
<pl:id>http://data.media.theplatform.com/media/data/Media/97681476000</pl:id>
<guid isPermaLink="false">a4ad87f6-cbe4-4816-9580-b6679af0ea73</guid>
<title>NG Live!: Sheikh of the Arctic</title>
<description><p>Having completed more solo trips to the Poles than anyone else on the planet, Børge Ousland is sometimes surprised by who he runs into crossing the vast Arctic tundra.</p></description>
<author />
<media:keywords />
<media:restriction relationship="deny" type="country" />
<media:content channels="2" samplingrate="44.1" bitrate="535.928" medium="video" duration="175.031" expression="full" fileSize="11725511" framerate="29.97" type="video/mp4" height="346" isDefault="true" url="http://link.theplatform.com/s/ngs/ekLOLGt3bemU?feed=NG%20Video" width="616">
<media:hash algo="md5">0AF4AD25977BF50888075D3547F67173</media:hash>
<pl:added>Sun, 22 Dec 2013 02:41:46 GMT</pl:added>
<plfile:assetType>mpeg4</plfile:assetType>
</media:content>
<media:thumbnail expression="full" fileSize="79478" type="image/jpeg" height="556" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_990x556_177596483623.jpg" width="990">
<media:hash algo="md5">60FFCE1C849440050CBCBD259EF2CE65</media:hash>
<pl:added>Sun, 02 Mar 2014 05:26:41 GMT</pl:added>
<plfile:assetType>Poster</plfile:assetType>
<plfile:assetType>MED</plfile:assetType>
</media:thumbnail>
<media:thumbnail expression="full" fileSize="209762" type="image/jpeg" height="720" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720.jpg" width="1280">
<media:hash algo="md5">08AC83096DC5F7E48A7CDE4BFA23A27A</media:hash>
<pl:added>Sun, 02 Mar 2014 05:26:30 GMT</pl:added>
<plfile:assetType>Mezzanine Image</plfile:assetType>
</media:thumbnail>
<media:thumbnail expression="full" fileSize="2962" type="image/jpeg" height="68" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_120x68_177597507564.jpg" width="120">
<media:hash algo="md5">605D86F9A2B606D97A653576E6CE99D2</media:hash>
<pl:added>Sun, 02 Mar 2014 05:26:45 GMT</pl:added>
<plfile:assetType>Thumbnail</plfile:assetType>
</media:thumbnail>
<media:thumbnail expression="full" fileSize="23707" type="image/jpeg" height="270" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_480x270_177598019578.jpg" width="480">
<media:hash algo="md5">73F78D0314E0CC15CDA5C36AAE4560AD</media:hash>
<pl:added>Sun, 02 Mar 2014 05:26:42 GMT</pl:added>
<plfile:assetType>Poster</plfile:assetType>
<plfile:assetType>X-SM</plfile:assetType>
</media:thumbnail>
<media:thumbnail expression="full" fileSize="83905" type="image/jpeg" height="576" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_1024x576_177598019579.jpg" width="1024">
<media:hash algo="md5">5C4B05CE487697A63F4FEC8B51009497</media:hash>
<pl:added>Sun, 02 Mar 2014 05:26:43 GMT</pl:added>
<plfile:assetType>Poster</plfile:assetType>
<plfile:assetType>LG</plfile:assetType>
</media:thumbnail>
<media:thumbnail expression="full" fileSize="114846" type="image/jpeg" height="720" isDefault="false" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_1280x720_177598019580.jpg" width="1280">
<media:hash algo="md5">31BFBD1020B2277B7E6FDD353973F263</media:hash>
<pl:added>Sun, 02 Mar 2014 05:26:43 GMT</pl:added>
<plfile:assetType>Poster</plfile:assetType>
<plfile:assetType>X-LG</plfile:assetType>
</media:thumbnail>
<media:thumbnail expression="full" fileSize="37132" type="image/jpeg" height="360" isDefault="true" url="http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_640x360_177598019582.jpg" width="640">
<media:hash algo="md5">2654AFBE193785E29FF0533CF977A473</media:hash>
<pl:added>Sun, 02 Mar 2014 05:26:44 GMT</pl:added>
<plfile:assetType>Poster</plfile:assetType>
<plfile:assetType>SM</plfile:assetType>
</media:thumbnail>
<pubDate>Sat, 21 Dec 2013 06:56:49 GMT</pubDate>
<plmedia:defaultThumbnailUrl>http://pmdvod.nationalgeographic.com/NG_Video/997/323/67322_1_1280x720_640x360_177598019582.jpg</plmedia:defaultThumbnailUrl>
<plmedia:provider />
<pl1:youTubeInStreamStandard>true</pl1:youTubeInStreamStandard>
<pl1:youTubeInStreamTrueView>true</pl1:youTubeInStreamTrueView>
<pl1:youTubeInVideo>true</pl1:youTubeInVideo>
<pl1:youTubePublic>false</pl1:youTubePublic>
<ngs:clipTypeOld>none</ngs:clipTypeOld>
<ngs:contentCreationDate>Mon, 13 May 2013 19:03:22 GMT</ngs:contentCreationDate>
<ngs:network>NGS</ngs:network>
<ngs:redirectToExternal>never</ngs:redirectToExternal>
<ngs:requiresAuth>false</ngs:requiresAuth>
<ngs:series>{"updated_datetime":null,"creation_datetime":null,"is_active":false,"name":"National Geographic Live","translated_names":[],"synonyms":[],"uuid":null,"notes":null,"objectType":"org.ngs.video.Show","groups":[],"url":null}</ngs:series>
<ngs:seriesName>National Geographic Live</ngs:seriesName>
<ngsTax:location>{"updated_datetime":"2014-04-03T19:09:42.570Z","is_active":true,"creation_datetime":"2013-11-28T20:27:32.077Z","parent":"http://taxonomy.nationalgeographic.com/api/v1/locations/eea9ad49-32fc-3a7c-bf15-cfeabdaa2fb7","geonames_uri":null,"url":"http://taxonomy.nationalgeographic.com/api/v1/locations/ff4e742f-46e6-3867-be8c-003a7af8f86c","dbpedia_uri":"http://dbpedia.org/page/Arctic","name":"Arctic","longitude":0.0,"hierarchy":"earth/arctic/","latitude":0.0,"uuid":"ff4e742f-46e6-3867-be8c-003a7af8f86c","notes":"","objectType":"org.ngs.taxonomy.GeoLocation","groups":["Place","region"],"english_name":null,"parentName":"Earth"}</ngsTax:location>
<ngsTax:location>{"updated_datetime":"2014-05-28T20:43:43.719Z","is_active":true,"creation_datetime":"2013-11-28T20:01:26.936Z","synonyms":[null,null],"parent":"http://taxonomy.nationalgeographic.com/api/v1/locations/eea9ad49-32fc-3a7c-bf15-cfeabdaa2fb7","geonames_uri":"http://sws.geonames.org/6697173/","url":"http://taxonomy.nationalgeographic.com/api/v1/locations/d2ce52aa-c6ac-3a13-9f8c-59cb13ecb924","dbpedia_uri":null,"name":"Antarctica","translated_names":[null],"longitude":16.40626,"hierarchy":"earth/antarctica/","latitude":-78.15856,"uuid":"d2ce52aa-c6ac-3a13-9f8c-59cb13ecb924","notes":"","objectType":"org.ngs.taxonomy.GeoLocation","groups":["Place","continent"],"english_name":null,"parentName":"Earth"}</ngsTax:location>
<ngsTax:organization>{"updated_datetime":"2014-05-02T15:37:25.776Z","creation_datetime":"2013-11-28T19:40:52.694Z","is_active":true,"name":"National Geographic Live","synonyms":[null],"uuid":"bae34d69-0601-342b-abe4-345c4c2486c4","notes":"","objectType":"org.ngs.taxonomy.Organization","english_name":null,"groups":["Organization"],"url":"http://taxonomy.nationalgeographic.com/api/v1/organizations/bae34d69-0601-342b-abe4-345c4c2486c4"}</ngsTax:organization>
<ngsTax:slug>ousland-sheikh-bonus-nglive</ngsTax:slug>
<ngsTax:subject>{"updated_datetime":"2014-06-04T15:56:21.047Z","definition":"","is_active":true,"creation_datetime":"2013-11-28T19:59:40.956Z","scope_note":"","synonyms":[null],"parent":"http://taxonomy.nationalgeographic.com/api/v1/subjects/83bf00d5-93bd-3cca-acc3-543652f06d52","url":"http://taxonomy.nationalgeographic.com/api/v1/subjects/58f9272e-f37b-3550-a228-a5ee119553ae","name":"Explorers","hierarchy":"exploration/explorers/","uuid":"58f9272e-f37b-3550-a228-a5ee119553ae","notes":"","objectType":"org.ngs.taxonomy.Subject","groups":["Subject"],"english_name":null,"parentName":"Exploration"}</ngsTax:subject>
<ngsTax:subject>{"updated_datetime":"2014-01-29T14:56:08.338Z","definition":"","is_active":true,"creation_datetime":"2013-11-28T19:52:45.402Z","scope_note":"","parent":"http://taxonomy.nationalgeographic.com/api/v1/subjects/83bf00d5-93bd-3cca-acc3-543652f06d52","url":"http://taxonomy.nationalgeographic.com/api/v1/subjects/83c5f238-8dbc-373e-9d62-4deb4c59e122","name":"Expeditions","hierarchy":"exploration/expeditions/","uuid":"83c5f238-8dbc-373e-9d62-4deb4c59e122","notes":"","objectType":"org.ngs.taxonomy.Subject","groups":["Subject"],"english_name":null,"parentName":"Exploration"}</ngsTax:subject>
<ngsTax:subject>{"updated_datetime":"2014-02-10T19:47:37.384Z","definition":"","is_active":true,"creation_datetime":"2014-01-16T17:48:21.375Z","scope_note":"","synonyms":[null,null,null],"parent":"http://taxonomy.nationalgeographic.com/api/v1/subjects/a817863e-de0f-3ffd-944d-c75ed20308ff","url":"http://taxonomy.nationalgeographic.com/api/v1/subjects/f0c33fd8-5e31-36b2-9229-b71628df3367","name":"Travel","hierarchy":"travel-and-adventure/travel/","uuid":"f0c33fd8-5e31-36b2-9229-b71628df3367","notes":"","objectType":"org.ngs.taxonomy.Subject","groups":["Subject"],"english_name":null,"parentName":"Travel and Adventure"}</ngsTax:subject>
<ngsTax:title>NG Live!: Sheikh of the Arctic</ngsTax:title>
<wpf:allTaxonomyId>18160</wpf:allTaxonomyId>
<wpf:allTaxonomyId>1589</wpf:allTaxonomyId>
<wpf:allTaxonomyId>858</wpf:allTaxonomyId>
<wpf:altLinkedLegacyUrl />
<wpf:author />
<wpf:firstPublishedTime>Mon, 13 May 2013 19:11:17 GMT</wpf:firstPublishedTime>
<wpf:id>13615</wpf:id>
<wpf:lastPublishedTime>Mon, 03 Feb 2014 21:50:20 GMT</wpf:lastPublishedTime>
<wpf:lineupName>Nat Geo Live 2</wpf:lineupName>
<wpf:locationMigration>Arctic</wpf:locationMigration>
<wpf:locationMigration>Antarctica</wpf:locationMigration>
<wpf:metaKeyword>Nat Geo Live</wpf:metaKeyword>
<wpf:metaKeyword>Nat Geo Live!</wpf:metaKeyword>
<wpf:metaKeyword>lecture</wpf:metaKeyword>
<wpf:metaKeyword>National Geographic Live</wpf:metaKeyword>
<wpf:metaKeyword>National Geographic Live!</wpf:metaKeyword>
<wpf:metaKeyword>NGLive</wpf:metaKeyword>
<wpf:metaKeyword>NG Live</wpf:metaKeyword>
<wpf:metaKeyword>Nat Geo Events</wpf:metaKeyword>
<wpf:metaKeyword>Børge Ousland</wpf:metaKeyword>
<wpf:metaKeyword>polar</wpf:metaKeyword>
<wpf:metaKeyword>adventure</wpf:metaKeyword>
<wpf:metaKeyword>explore</wpf:metaKeyword>
<wpf:metaKeyword>exploration</wpf:metaKeyword>
<wpf:metaKeyword>expedition</wpf:metaKeyword>
<wpf:metaKeyword>ski</wpf:metaKeyword>
<wpf:metaKeyword>North Pole</wpf:metaKeyword>
<wpf:metaKeyword>loneliness</wpf:metaKeyword>
<wpf:metaKeyword>strange</wpf:metaKeyword>
<wpf:metaKeyword>visitor</wpf:metaKeyword>
<wpf:metaKeyword>ice</wpf:metaKeyword>
<wpf:metaKeyword>photo</wpf:metaKeyword>
<wpf:metaKeywords>Nat Geo Live, Nat Geo Live!, lecture, National Geographic Live, National Geographic Live!, NGLive, NG Live, Nat Geo Events, Børge Ousland, polar, adventure, explore, exploration, expedition, ski, North Pole, loneliness, strange, visitor, ice, photo</wpf:metaKeywords>
<wpf:organizationMigration>National Geographic Live</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>Explorers</wpf:subjectMigration>
<wpf:subjectMigration>Expeditions</wpf:subjectMigration>
<wpf:subjectMigration>Travel</wpf:subjectMigration>
<wpf:taxonomyId>18160</wpf:taxonomyId>
<ytcp:youTubeAssetType>web</ytcp:youTubeAssetType>
<ytcp:youTubeSavedMatchRights>Monetize in all countries</ytcp:youTubeSavedMatchRights>
<ytcp:youTubeSavedUsageRights>Monetize in all countries</ytcp:youTubeSavedUsageRights>
</item>
</channel>
</rss>
here is my code
function parsexml($xml)
{
$xmlparse=simplexml_load_string($xml)
var_dump($xmlparse);
}
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 simpleXMLElement object you use.
<?
$str = '*your string here*';
$xml = simplexml_load_string($str);
// to get pl:added
foreach($xml->xpath('//media:content') as $element) {
$added = $element->xpath('//pl:added');
}
//output $added
echo "<pre>";
var_dump($added);
// to get media:hash
foreach($xml->xpath('//media:thumbnail') as $element) {
$hash = $element->xpath('//media:hash');
}
//output $hash
echo "<pre>";
var_dump($hash);
?>
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*';
$xml = simplexml_load_string($str);
// to get the namespaces uncomment the next 3 lines
// $namespaces = $xml->getNamespaces(true);
// echo "<pre>";
// var_dump($namespaces);
$xml->registerXPathNamespace('media', 'http://search.yahoo.com/mrss/');
foreach($xml->xpath('//media:content') as $element) {
$element->registerXPathNamespace('pl', 'http://xml.theplatform.com/data/object');
$added = $element->xpath('//pl:added');
}
echo "<pre>";
var_dump($added);
$xml->registerXPathNamespace('media', 'http://search.yahoo.com/mrss/');
foreach($xml->xpath('//media:thumbnail') as $element) {
$element->registerXPathNamespace('media', 'http://search.yahoo.com/mrss/');
$hash = $element->xpath('//media:hash');
}
echo "<pre>";
var_dump($hash);
?>
这篇关于如何使用命名空间解析 XML?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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