Removing an xml node using php

Question

I have an xml file like this:

<uploads>
 <upload>
  <name>asd</name>
  <type>123</name>
 </upload>
 <upload>
  <name>qwe</name>
  <type>456</name>
 </upload>
</uploads>

Now I want to delete a node upload that has a name child as (say qwe). How can I delete it using php , so that the resulting xml is

<uploads>
 <upload>
  <name>asd</name>
  <type>123</name>
 </upload>
</uploads>

I do not have too much knowledge about xml and related techniques. Is it possible to do it using xpath, like this $xml->xpath('//upload//name')? Assuming $xml was loaded using simplexml_load_file() function.

For reference, I was using this question to do what I want. But, it selects the element based on an attribute and I want to select an element based on the value of it child node.

VolkerK · Accepted Answer · 2011-12-23 12:22:19Z

2

Yes, you can use XPath to find the node that is to be removed. You can use predicates to specifiy the exact elements you're looking for. In your case the predicate can be has a name element and its (string/node) value is 'qwe', like e.g.:

<?php
$doc = new DOMDocument;
$doc->preserveWhiteSpace = false;
$doc->loadxml( getData() );

$xpath = new DOMXPath($doc);
foreach( $xpath->query("/uploads/upload[name='qwe']") as $node) {
    $node->parentNode->removeChild($node);
}
$doc->formatOutput = true;
echo $doc->savexml();


function getData() {
    return <<< eox
<uploads>
 <upload>
  <name>asd</name>
  <type>123</type>
 </upload>
 <upload>
  <name>qwe</name>
  <type>456</type>
 </upload>
</uploads>
eox;
}

prints

<?xml version="1.0"?>
<uploads>
  <upload>
    <name>asd</name>
    <type>123</type>
  </upload>
</uploads>

answered Dec 23, 2011 at 12:22

VolkerK

96.3k20 gold badges169 silver badges232 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Removing an xml node using php

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related