PHP: DOMDocument - attributes with a colon in it?

Question

I\'m using DOMDocument to parse an XML (SVG).

Some nodes have attributes with a colon in it, like :

Answer 1

Answer from OP's comment, nodeName from DOMNode.

$node= DOMDocument->documentElement;
foreach($node->childNodes as $key=>$childnode) {
  foreach($childnode->attributes as $attribute) {
    echo $attribute->nodeName."\n";
  }
}

Original Answer:

How about prefix from DOMNode?

$node= DOMDocument->documentElement;
foreach($node->childNodes as $key=>$childnode) {
  foreach($childnode->attributes as $attribute) {
    echo $attribute->prefix.":".$attribute->name."\n";
  }
}