Description: ------------ Function addArray() generates incorrectly designed XML document out of not associative arrays. code $a = array('apple', 'orange', 'pear'); $xml->addArray($a); $xml->getXML(); returns incorrect formed XML document, without error reporting <?xml version="1.0"?> <root> <result> <0>apple</0> <1>orange</1> <2>pear</2> </result> </root> I think there should be either an error alert or array processing with the similar function before generating xml document. function prepare_xml_array($array, $key_name = 'index_', $suffix = '_') { if (!is_array($array)) { return false; } $array_new = array(); foreach($array as $key=>$val) { if (!is_string($key)) { $key = $key_name.$key; while (array_key_exists($key, $array)) { $key .= $suffix; } } if (is_array($val)) { $array_new[$key] = prepare_xml_array($val); } else { $array_new[$key] = $val; } } return $array_new; } Reproduce code: --------------- $a = array('apple', 'orange', 'pear'); $xml->addArray($a); $xml->getXML(); Expected result: ---------------- some thing like <?xml version="1.0"?> <root> <result> <i0>apple</i0> <i1>orange</i1> <i2>pear</i2> </result> </root> Actual result: -------------- <?xml version="1.0"?> <root> <result> <0>apple</0> <1>orange</1> <2>pear</2> </result> </root>