DOMXML usage

I'm attempting to create a generic XML writer with the DOMXML functions which takes as its input the array structure generated by gdemartiti on this function page: http://us3.php.net/manual/en/function.xml-parse-into-struct.php Actually, it's the updated version done by kris@h3x.com, here: http://www.devdump.com/phpxml.php Anyway, the trouble I'm having is when I get to a child element and need to use 'append_child' -- append_child requires that you specify the ancestor element you're appending to, but I can't seem to reference that object when I loop back into the function. This is probably a class/object issue since I'm pretty useless with classes. If I come into the function, having passed the ancestor name as a string and having already added the ancestor as an object in the class, this doesn't work: $child = $ancestor->append_child($thisChild); The error is: "...Call to a member function on a non-object...". How can I reference that ancestor object when I come back into the function? (PHP version is 4.3.2, Apache 2.0.44 on Win2k) Thanks, -- Matt Grimm Web Developer The Health TV Channel, Inc. (a non - profit organization) 3820 Lake Otis Parkway Anchorage, AK 99508 907.770.6200 ext. 686 907.336.6205 (fax) E-mail: mgrimm@healthtvchannel.org Web: www.healthtvchannel.org