It may also return DOMNameSpaceNode if you`re requesting 'xmlns:_prefix_'. So you`re unable to remove it with removeAttributeNode() which requires DOMAttr as parameter.
(PHP 5, PHP 7)
DOMElement::getAttributeNode — Returns attribute node
Returns the attribute node with name name
for the
current element.
name
The name of the attribute.
The attribute node.
It may also return DOMNameSpaceNode if you`re requesting 'xmlns:_prefix_'. So you`re unable to remove it with removeAttributeNode() which requires DOMAttr as parameter.
Just trying to add some clarification: this function will return boolean "false" when there is not a $name attribute :)
Cheers, Alex