php 远程读取xml

$fp=fsockopen("xxx.xxx.com", 80, $errno, $errstr, 30);
 if($fp){
  $out = "GET /abc.xml?key=value HTTP/1.1\r\n";   
     $out .= "Host: xxx.xxx.com\r\n";   
     $out.= 'User_Agent: XML-RPC Client\r\n';
     $out.='Content-Type: text/xml\r\n';
     $out .= "Connection: Close\r\n\r\n";     
     
      fwrite($fp,$out);
  while(!@feof($fp)){
         $result.=@fgets($fp,1024);
       }
       fclose($fp);   
 }
 echo $result;