Description: ------------ I'm building raw text XMLL When I set Serializer = XML, I have an error with the"saveXml()" method. Btw, it's normal, $input is not an XML DOMDocument object (but text) Test script: --------------- File Serializer/XML.php $input is a good formed XML text string Expected result: ---------------- Here is my correction: function serialize($input) { if(empty($input)) { return $input; } // we check for the dom extension elseif (extension_loaded('Dom')) { return (is_a($input, 'DOMDocument')) ? $input->saveXml() : $input; } // then will check for domxml elseif (extension_loaded('Domxml')) { return (is_a($input, 'Domxml')) ? $input->dump_mem(): $input; }