จะเขียนสคริป PHP ให้อ่านข้อมูลจาก Rss ยังไงครับ

<?
 $arr=array();
 $count=0;
 $block="ITEM";

 $key="";
 $value="";

 function startxml( $parser , $name, $att)
 {
  global $key;
  $key=$name;
 }
 function endxml( $parser, $name )
 {
  global $count;
  global $block;
  if ($name==$block)
  {
   $count=$count+1;
  }
 }
 function cdata( $parser, $data )
 {
  global $key;
  global $value;
  global $count;
  global $arr;
  if (strlen($data)>1)  
  {
   $value=$data;
   $arr[$count]["$key"]=$value;
  }
 }
 $p=xml_parser_create();
 xml_set_element_handler( $p , "startxml" , "endxml");
 xml_set_character_data_handler($p, "cdata" );
 $fp=fopen("http://www.xyz.com/com_rss.xml","r");
 while($data=fread($fp,4096))
 {
  xml_parse( $p, $data, feof($fp));
 }

 print("<font size=2></b>");
 for ($i=1;$i<5;$i++)
 {
  echo "<img src=arrow.gif> <a href=", $arr[$i]["LINK"],">";
  echo $arr[$i]["TITLE"];
  echo "</a>";
  echo "<br>";
 }
?>