amazonwebservices/aws-sdk-for-php — pull request #39 by jswift (2012-09-18 07:13:01+00:00)
Title: Fixed circular to string method in simplexml

utilities/simplexml was changed in 1.5.7 to extend simplexmlelement::_toString(), but the implemented to_string() method had an implied call _toString.

This fix prevents the never-ending loop.