';        $xml .= "<{$root}>";        $xml .= array_to_xml($data);           $xml .= "
    ";        return $xml;    }    function xml_decode($xml, $root = 'so') {        $search = '/<(' . $root . ')>(.*)<\/\s*?\\1\s*?>/s';        $array = array();        if(preg_match($search, $xml, $matches)){            $array = xml_to_array($matches[2]);        }        return $array;    }    function array_to_xml($array) {        if(is_object($array)){            $array = get_object_vars($array);        }        $xml = '';        foreach($array as $key => $value){            $_tag = $key;            $_id = null;            if(is_numeric($key)){                $_tag = 'item';                $_id = ' id="' . $key . '"';            }            $xml .= "<{$_tag}{$_id}>";            $xml .= (is_array($value) || is_object($value)) ? array_to_xml($value) : htmlentities($value);            $xml .= "
    ";        }        return $xml;    }    function xml_to_array($xml) {        $search = '/<(\w+)\s*?(?:[^\/>]*)\s*(?:\/>|>(.*?)<\/\s*?\\1\s*?>)/s';        $array = array ();        if(preg_match_all($search, $xml, $matches)){            foreach ($matches[1] as $i => $key) {                $value = $matches[2][$i];                if(preg_match_all($search, $value, $_matches)){                    $array[$key] = xml_to_array($value);                }else{                    if('ITEM' == strtoupper($key)){                        $array[] = html_entity_decode($value);                    }else{                        $array[$key] = html_entity_decode($value);                    }                }            }        }        return $array;    }