===Property===
object(SimpleXMLElement)#%d (3) {
  ["@attributes"]=>
  array(1) {
    ["attr1"]=>
    string(5) "first"
  }
  ["comment"]=>
  object(SimpleXMLElement)#%d (0) {
  }
  ["elem2"]=>
  object(SimpleXMLElement)#%d (1) {
    ["elem3"]=>
    object(SimpleXMLElement)#%d (1) {
      ["elem4"]=>
      object(SimpleXMLElement)#%d (1) {
        ["test"]=>
        object(SimpleXMLElement)#%d (0) {
        }
      }
    }
  }
}
===Array===
object(SimpleXMLElement)#%d (1) {
  [0]=>
  string(5) "elem1"
}
object(SimpleXMLElement)#%d (1) {
  [0]=>
  string(5) "first"
}
===Set===
object(SimpleXMLElement)#%d (1) {
  [0]=>
  string(8) "Changed1"
}
object(SimpleXMLElement)#%d (1) {
  [0]=>
  string(2) "12"
}
===Unset===
NULL
NULL
===Misc.===
int(4)
int(4)
===Done===