Accessing data in object inside array using php's SimpleXML

This is related to my earlier question here: Trying to read XML nodes using PHP DOM

I have an array which has elements that look like this:

[rpc.pingomatic.com] => Array
        (
            [http://www.example.com] => Array
                (
                    [0] => SimpleXMLElement Object
                        (
                            [name] => flerror
                            [value] => SimpleXMLElement Object
                                (
                                    [boolean] => 0
                                )

                        )

                    [1] => SimpleXMLElement Object
                        (
                            [name] => message
                            [value] => SimpleXMLElement Object
                                (
                                    [string] => Pings being forwarded to 11 services!
                                )

                        )
       开发者_如何学Go     )

I want to retrieve the data and finally display it in this manner:

flerror:0

Message from directory:Pings being forwarded to 11 services

I can use this to retrieve the necessary fields:

echo $response->name;                   
echo $response->value->boolean;
echo $response->value->string;

However, I am using a foreach loop to traverse through the array, and not all elements have the fields named boolean and string. They might have something like flag instead of boolean, etc.

Is there a generic way to retrieve the necessary data using the same foreach loop?

You could use this method PHP: SimpleXMLElement::xpath - Manual

I figured the best way to deal with my problem is to use isset($response->value->boolean) or isset($response->value->string) to ascertain the type of the value and echo it out.