get_property_ptr

hey, I'm working on simplexml (sources available in pecl), and I want it to work in a foreach() loop without requiring the use of a temporary variable, ie: books.xml <books> <book> <title>The Grapes of Wrath</title> <author>John Steinbeck</author> </book> <book> <title>The Pearl</title> <author>John Steinbeck</author> </book> </books> books.php <?php $books = simplexml_load_file('books.xml'); $booklist = $books->book; // must assign to a temporary variable foreach ($booklist as $book) { echo "{$book->title}\n"; } ?> So I'm trying to figure out how to use the get_property_ptr callback. I've tried a few things: 1) zend_object_create_proxy. The docs say I can just return a proxy object, however, this causes a segfault for me: return zend_object_create_proxy(object, member TSRMLS_CC); 2) Adding indirection. I just call property_read, and then return a pointer to the result of the property_read call. This also yields a segfault. So, any insights on how I might be a smarter boy, and actually get this thingy to work? :) -Sterling