public static function splitToNodeset($strList, $separator = ",")
 {
     $dom = new domdocument();
     $dom->loadXML("<list />");
     $docEl = $dom->documentElement;
     $arr = explode($separator, $strList);
     $found = false;
     foreach ($arr as $item) {
         if (!empty($item)) {
             $found = true;
             $element = $dom->createElement("item", $item);
             $element->setAttribute("value", $item);
             $docEl->appendChild($element);
         }
     }
     return $dom->documentElement;
 }
 /**
  * convert array to xml
  *
  * @param string $p_arr 
  * @param string $rootName 
  * @return DomDocument
  * @author Andy Bennett
  */
 public static function convert_array_to_xml($p_arr, $rootName = 'rows')
 {
     $doc = new domdocument("1.0", "utf-8");
     if (is_array($p_arr) && count($p_arr) != 0) {
         $arr = array();
         if (count($p_arr) > 1) {
             if ($rootName != "") {
                 $root = $doc->createElement($rootName);
             } else {
                 $root = $doc->createElement("root");
                 $rootName = "root";
             }
             $arr = $p_arr;
         } else {
             $key = key($p_arr);
             $val = $p_arr[$key];
             if (!is_int($key)) {
                 $root = $doc->createElement($key);
                 $rootName = $key;
             } else {
                 if ($rootName != "") {
                     $root = $doc->createElement($rootName);
                 } else {
                     $root = $doc->createElement("root");
                     $rootName = "root";
                 }
             }
             $arr = $p_arr[$key];
         }
         $root = $doc->appendchild($root);
         self::array_to_xml($doc, $root, $arr, $rootName);
         return $doc;
     }
 }