PHP XML addChild() not working

Question

I'm working on project, one of its functions is to add data to XML file that will be extracted later, the extracting part is working well but not the adding part. I created a new php file that contains the code of XML adding part, but still not working. Here is the php file:

<?
$xml = simplexml_load_file('test.xml');
$msg = $xml->addChild('msg');
$msg->addChild('name', 'newName');
$msg->addChild('text', 'myText');
?>

Here is the test.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<msgs>

</msgs>

The page shows no php error and the xml still the same. I have been looking for solution for hours but couldn't find. Please help!

a) Do you use SimpleXMLElement::asXML($filename) somewhere in that script? b) Does your php instance recognize the short tag <?? — VolkerK
– VolkerK, Commented Feb 5, 2016 at 1:06

oroboto · Accepted Answer · 2016-02-05 01:07:24Z

1

simplexml_load_file() returns a SimpleXMLElement to which you're adding elements, you now need to serialise that instance back to a file:

$msg->asXML('output.xml');

Or if you just want to capture the XML as a string:

$xmlString = $msg->asXML();

answered Feb 5, 2016 at 1:07

oroboto

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1 Comment

xYuri Over a year ago

Yes, you answered while i was writing my answer, thanks anyway :D

xYuri · Accepted Answer · 2016-02-05 01:13:50Z

1

The problem was that it does what its supposed to do but not saving, adding this $xml->asXML('test.xml'); to the end of php will make it save in the XML file. Found it by reading the filename part of asXML doc. here asXML()

answered Feb 5, 2016 at 1:13

xYuri

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