Node no longer exists using SimpleXML

Question

Trying to cache an xml file using the build in wordpress function called get_transient but I\'m getting a php error:

unserialize() [function.unserialize]: Node

Answer 1

You shouldn't (can't?) serialize and unserialize the SimpleXML object. It's XML, which is a serialization format to begin with. This ain't Inception here!

Call the asXML method to get the actual XML, then store that instead.