This question already has an answer here:
how do i get the value of [@attributes] ?? what's the syntax in php?
[4] => SimpleXMLElement Object
(
[Text] => Zoltán Stieber
[Url] => https://en.wikipedia.org/wiki/Zolt%C3%A1n_Stieber
[Description] => Zoltán Stieber (Hungarian pronunciation: [ˈzoltaːn ˈʃtiːbɛr]; born 16 October 1988) is a professional Hungarian footballer who plays for 1. FC Kaiserslautern and the Hungary national football team.
[Image] => SimpleXMLElement Object
(
[@attributes] => Array
(
[source] => https://upload.wikimedia.org/wikipedia/commons/thumb/6/61/1_Zolt%C3%A1n_Stieber_%28cropped%29.jpg/50px-1_Zolt%C3%A1n_Stieber_%28cropped%29.jpg
[width] => 50
[height] => 39
)
)
)
</div>
Check the documentation here http://php.net/manual/en/class.simplexmlelement.php
use attributes method