XML解析问题

<?
$xmlstring='<?xml version="1.0" encoding="gbk"?><RECORDS RECORDCOUNT="2" TOTALCOUNT="2">
<RECORD>
<ID>PIC12345853939_4613</ID>
<USERID>12345</USERID>
<ALBUM>ALB12345_1095851449_9250</ALBUM>
<CREATE>2004-09-22 19:52:19</CREATE>
<UPDATE></UPDATE>
<LOADTIME></LOADTIME>
<DROIT>10</DROIT>
<RESHIP>1</RESHIP>
<ISRESHIP>0</ISRESHIP>
<AUTHOR>12345</AUTHOR>
<AUTHORNAME>12345_USERNAME</AUTHORNAME>
<TITLE>&amp;nbsp;</TITLE>
<DOCPATH>doc/12/345/PIC12345_1095853939_4613_0001.txt</DOCPATH>
<PICPATH>pic/12/345/PIC12345_1095853939_4613.jpg</PICPATH>
<IP>127.0.0.1</IP>
<PICSIZE>0</PICSIZE>
<SHPTIME>0</SHPTIME>
<UPDTIME>1</UPDTIME>
<HITTIMES>0</HITTIMES>
<CMDTIMES>0</CMDTIMES>
<STATE>0</STATE>
</RECORD>
</RECORDS>';

     $test=new  DomDocument();
         $test->loadXml($xmlstring);
    // $test>create_cdata_section("<root><child num=1></child></root>");
   /* $node=$test->getElementsByTagName("USERID")->item(0);
    $node_add=$test->createElement("testnew");

         $node_add_text=  $test->createTextNode(" ");
         $node_add->appendChild($node_add_text);
         $node->appendChild($node_add);
                    */
     print $test->SaveXml();
  $test->Save("c:\\test1.xml");
?>
在解析时出错，因为  的存在！！