将特定节点搜索到xml文件中

Question

I've made this xml file to manage some audio tracks information.

<releases>
<track>
<uid>betauser</uid>
<artist>cianci</artist>
<title>cianci</title>
<year>2001</year>
<label>duib</label>
<cover>DSC_0115.jpg</cover>
<aside>chitarra_peps</aside>
<bside>chitarra_peps</bside>
</track>
</releases>

It's updated by users that will input all the information about tracks using a form. I need to search into the xml to show to the logged user his inserted tracks, so i want to use the $_SESSION variable to search into the xml file and return only the nodes added by the user. Is it possible using php? I store the $_SESSION information into the field named uid, so this value is different for every user.

Answer 1

You can use SimpleXml and Xpath to find track with specified uid

$uid = 'betauser';

$xml = simplexml_load_string($str);
$track = $xml->xpath('//track[uid="'. $uid .'"]');
echo $track[0]->asXML();

demo