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POPHP SimpleXML parsing XML with namespaces
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  1. POPHP SimpleXML parsing XML with namespaces
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    copied!<p>I have XML like this</p> <pre><code>&lt;atom:feed xmlns="http://kosapi.feld.cvut.cz/schema/3" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:osearch="http://a9.com/-/spec/opensearch/1.1/" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:base="https://kosapi.fit.cvut.cz/api/3/" xml:lang="cs"&gt; &lt;atom:entry&gt; &lt;atom:id&gt;urn:cvut:kos:parallel:353810000&lt;/atom:id&gt; &lt;atom:updated&gt;2013-06-02T14:15:54.0&lt;/atom:updated&gt; &lt;atom:author&gt; &lt;atom:name&gt;kalvotom&lt;/atom:name&gt; &lt;/atom:author&gt; &lt;atom:link rel="self" href="parallels/353810000/"/&gt; &lt;atom:content atom:type="xml" xsi:type="parallel"&gt; &lt;capacity&gt;24&lt;/capacity&gt; &lt;capacityOverfill&gt;DENIED&lt;/capacityOverfill&gt; &lt;code&gt;101&lt;/code&gt; &lt;course xlink:href="courses/BI-EFA/"&gt;Efektivní algoritmy&lt;/course&gt; &lt;enrollment&gt;DENIED&lt;/enrollment&gt; &lt;occupied&gt;0&lt;/occupied&gt; &lt;parallelType&gt;TUTORIAL&lt;/parallelType&gt; &lt;semester xlink:href="semesters/B131/"&gt;Zimní 2013/2014&lt;/semester&gt; &lt;timetableSlot&gt; &lt;day&gt;2&lt;/day&gt; &lt;duration&gt;2&lt;/duration&gt; &lt;firstHour&gt;1&lt;/firstHour&gt; &lt;parity&gt;BOTH&lt;/parity&gt; &lt;room xlink:href="rooms/T9:346/"&gt;T9:346&lt;/room&gt; &lt;/timetableSlot&gt; &lt;/atom:content&gt; &lt;/atom:entry&gt; &lt;/atom:feed&gt; </code></pre> <p>I'm writing a PHP script and need to extract contents of <code>&lt;capacity&gt;</code>, <code>&lt;occupied&gt;</code> and <code>&lt;enrollment&gt;</code> tags for every <code>&lt;atom:entry&gt;</code> (there are actually multiple <code>&lt;atom:entry&gt;</code> tags). Now, I looked up some tips about how to deal with namespaces but still wasn't able to make it work. My code</p> <pre><code>$xml = simplexml_load_file("someurl"); $xml-&gt;registerXPathNamespace('prefix', 'http://www.w3.org/2005/Atom'); foreach($xml-&gt;xpath("//prefix:entry") as $entry) { $entry-&gt;registerXPathNamespace('prefix', 'http://www.w3.org/2005/Atom'); $content = $entry-&gt;xpath("//prefix:content"); echo $content-&gt;enrollment . " | " . $content-&gt;occupied . "/" . $content-&gt;capacity . "&lt;br /&gt;\n"; } </code></pre> <p>I get</p> <blockquote> <p>Notice: Trying to get property of non-object</p> </blockquote>
 

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