PHP DOM: populating values in XML data

Question

$xml = new DOMDocument();
$xml_store_inventory = $xml->createElement('store-inventory');  // highest layer
$xml_item = $xml->createElement('item');
$xml_quantity = $xml->createElement('quantity');

$xml->appendChild($xml_store_inventory);
$xml_store_inventory->appendChild($xml_item);
$xml_location->appendChild($xml_quantity);

gives:

<?xml version="1.0"?>
<store-inventory>
  <item>
      <quantity></quantity>
  </item>
</store-inventory>

So, I managed to create the above in PHP using DOM. I've been searching online on how to "populate," but I'm not finding any information on how to do this.

More specifically, I'd like this to look like this

<?xml version="1.0" encoding="UTF-8"?>
<store-inventory
xmlns="http://..."
xmlns:xsi="http://..."
xsi:schemaLocation="http://...">

    <item item-id="abcd">
       <quantity>0</quantity>
    </item>
</store-inventory>

So, I'd like to add/change the following:

change the XML version line to include encoding (scrape this, I figured out --> $xml = new DOMDocument('1.0', 'UTF-8');)
Add additional information to an element. e.g. [item] to [item item-id="abcd"]
Also [quantity] to [quantity]0[/quantity]

Can someone help me with this? TIA!

Hm I just noticed that. After some visits to my previous posts, it appears that it's for marking solutions to my posts. It didn't occur to me to do so. Sorry, I'm kinda new. — musicliftsme
No problem, was just a little reminder ;). What I don't understand in your question: "1. change the XML version line to include encoding" I both see a version and encoding in the XML. What would you like to change? — hakre
@hakre, the third block of code above is what I'd like the XML to look like. I've updated my post so reflect that I've figured out 1. Now I need to figure out 2 and 3! — musicliftsme
I've added an answer for 2 and 3. Regarding UTF-8 encoding: That's XML default, so no need to actually add it. But it's not a problem to do so either ;) — hakre

hakre hakre · Accepted Answer · 2011-07-06T18:44:53

You're already pretty close.

2: set an attribute:

// set/add an attribute:
$xml_item->setAttribute('item-id', "abcd");

3: add data while adding a tag/element:

// add an element with data:
$xml_quantity = $xml->createElement('quantity', '0');

2+: Use HTMLSpecialchars to prevent the browser to hide the tags:

echo nl2br(html_specialchars($xml->saveXML(), ENT_QUOTES));

PHP DOM: populating values in XML data

1 Answers