Using XMLWriter to generate XML File in PHP - outputMemory() function not working

Question

I am trying to create and write an XML file in PHP using XMLWriter.

My code is as follows:

$writer = new XMLWriter();
$writer->openURI('php://output');
$writer->startDocument('1.0','UTF-8');
$writer->setIndent(4);
$writer->startElement('items');
$writer->startElement("main");
$writer->writeElement('user_id', 3);
$writer->writeElement('msg_count', 11);
$writer->endElement();
$writer->startElement("msg");
$writer->writeAttribute('category', 'test');
$writer->endElement();
$writer->endElement();
$writer->endDocument();
$writer->flush();

header('Content-type: text/xml');

echo $writer->outputMemory();

This seems to create valid XML onscreen

<?xml version="1.0" encoding="UTF-8"?>
<items>
  <main>
    <user_id>3</user_id>
    <msg_count>11</msg_count>
  </main>
  <msg category="test"/>
</items>

However when I try to echo the XML using:

echo $writer->outputMemory();

The output is blank, additionally when the XML file is created using:

$filename = "xml/example.xml";
$file = $writer->outputMemory();
file_put_contents($filename,$file);

The file contents are also blank.

How I am able to output the XML to the file? The outputMemory() function doesn't seem to be getting populated.

What if you do openURI("xml/example.xml") ?

apokryfos
– apokryfos

2017-02-06 09:09:09 +00:00
Commented Feb 6, 2017 at 9:09 — apokryfos
– apokryfos, Commented Feb 6, 2017 at 9:09
No joy unfortunately, I am pulling my hair out.

Ben
– Ben

2017-02-06 11:51:53 +00:00
Commented Feb 6, 2017 at 11:51 — Ben
– Ben, Commented Feb 6, 2017 at 11:51

diego · Accepted Answer · 2018-08-09 22:28:16Z

2

you can try with that code

$filename = "xml/example.xml";
header("Content-Type: text/html/force-download");
header("Content-Disposition: attachment; filename=".$filename.".xml");

and no longer use:

$filename = "xml/example.xml";
$file = $writer->outputMemory();
file_put_contents($filename,$file);

Pd: Sorry for my bad english.

answered Aug 9, 2018 at 22:28

diego

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