XML creation on the fly using PHP

Question

I have a small requirement where I need to create a XML file on the fly. It was no problem for me to create a normal xml file which would be looking like this:

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <item>
    <name></name>
  </item>
</root>

But my requirement is such that I need to create a XML file whose output is:

<?xml version="1.0" encoding="UTF-8"?>
    <root>
      <item>
        <name url = "C:\htdocs\proj1\source_file1"/>
        <name url = "C:\htdocs\proj1\source_file2"/>
        <name url = "C:\htdocs\proj1\source_file3"/>
      </item>
    </root>

I have tried in this fashion:

<?php   
  $domtree = new DOMDocument('1.0', 'UTF-8');
  $domtree->formatOutput = true;  

  $xmlRoot = $domtree->createElement("root");  
  $xmlRoot = $domtree->appendChild($xmlRoot);

  $item = $domtree->createElement("item");
  $item = $xmlRoot->appendChild($item);

  $name= $domtree->createElement("name");
  $name = $item->appendChild($name);

  $sav_xml = $domtree->saveXML();
  $handle = fopen("new.xml", "w");
  fwrite($handle, $sav_xml);
  fclose($handle);     
?>

But I wanted to append/add the url="path" to my elements. I have tried declaring variables with url and path but this throws me errors like:

 Uncaught exception 'DOMException' with message 'Invalid Character Error'

Any ideas how to approach this problem!

Thanks

Your code doesnt show where you are trying to set the attribute. In any case, how to set an attribute in XML is a duplicate. See pastebin.com/U2rNuZQP for an example. — Gordon
– Gordon, Commented Dec 8, 2011 at 12:48
possible duplicate of How to create and set values for attribute in XML? — Gordon
– Gordon, Commented Dec 8, 2011 at 12:49

palmic · Accepted Answer · 2011-12-08 12:55:57Z

3

You just have to declare that attributes via php DOM:

...
$name= $domtree->createElement("name");

$urlAttribute = $domtree->createAttribute('url');
$urlAttribute->value = 'C:\htdocs\proj1\source_file1';
$name->appendChild($urlAttribute);

$item->appendChild($name);
...

Link to DOMDocument docs

edited Dec 8, 2011 at 12:55

answered Dec 8, 2011 at 12:49

palmic

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