How is possible add child to the specific node

Question

This is my starting xml :

 <?xml version="1.0" encoding="utf-8"?>
    <root>
      <child>
        <children></children>
     </child>
    </root>

and I wanna add other children in child?? but I'm trying and nothing I don't know how... :S help pls I want to my xml be to like this

  <?xml version="1.0" encoding="utf-8"?>
    <root>
      <child>
        <children></children>
        <children></children>
     </child>
    </root>

Here is my code :

<?php
            $dom = new DomDocument;
            //$dom->preserveWhiteSpace = FALSE;
            $dom->load("myXML.xml");
            $root = $dom->getElementById('root');
            $params = $dom->getElementsByTagName('child');
            $cantidadCategorias = $params->length+1;

            $newElement = $dom->createElement('child','');
            $dom->appendChild($newElement);
            $f = fopen("myXML.xml",'w+'); 
            fwrite($f,$dom->saveXML()); 
            fclose($f);

What are you using to generate your XML? Please add more details. — Nicholas Kouvatsos, Mar 14 '12 at 17:07
Please post the code you were trying with and specify at which part you're stuck. It's clear what you try to achieve in your question, but not where you've got the problem with that, so better share a bit more. — hakre, Mar 14 '12 at 17:09
Because you append it to the root node (`$root`) and not to the node of the `` element. See my answer below. — hakre, Mar 14 '12 at 17:20

hakre · Accepted Answer · 2012-03-14T17:19:33.023

8

With DOMDocument it's as easy as this:

$child = new DOMElement('children');
$parent->appendChild($child);

Whereas $parent is the DOMElement parent which (after you have updated your question) to aquire is part of your problem:

// append <children> to the first <child> element
$parent = $dom->getElementsByTagName('child')->item(0);
$child = new DOMElement('children');
$parent->appendChild($child);

edited Mar 14 '12 at 17:19

answered Mar 14 '12 at 17:13

hakre

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See that line: `$parent = $dom->getElementsByTagName('child')->item(0);` – hakre Mar 14 '12 at 17:20
1

Excelent dude ty with getELementByTagName()->item :D – Kucho Alejandro Mar 14 '12 at 17:24
An additional tip: instead of `fopen`... you can just use [`DOMDocument::save()`](http://php.net/manual/en/domdocument.save.php) - that's the counterpart to `DOMDocument::load()` you use at the top. – hakre Mar 14 '12 at 17:27

score 0 · Answer 2 · answered Mar 14 '12 at 17:11

Since you have tagged php i am assuming you are looking for a solution in PHP did you try the following:

$myxml = new SimpleXMLElement($xmlstr);
$myxml->child[0]->addChild('children');

See: http://www.php.net/manual/en/simplexml.examples-basic.php for a good set of examples on XML manipulation in PHP

score 0 · Answer 3 · answered Mar 14 '12 at 17:17

0

Some good examples on how to append XML nodes can be found in the PHP manual. Like this one on how to use the SimpleXMLElement class to add a child node.

answered Mar 14 '12 at 17:17

Thomas Bates

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How is possible add child to the specific node

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