파일업로드에서 한글파일명 따로저장하고 변환된파일명 저장

if ($file_1 [name]) {
 
 $ext_1 = array_pop ( explode ( ".", strtolower ( $file_1 [name] ) ) );
 
 if (@ereg ( $ext_1, "php|php3|php4|htm|inc|html" )) {
  echo "
  <script>
   alert('PHP, HTML파일은 업로드가 제한됩니다');
   history.back(1);
  </script>
  ";
  exit ();
 }
 
 $find_1 = '../../file/' . iconv ( "utf-8", "euc-kr", $file_1 [name] );
 
 if (file_exists ( $find_1 )) {
  $name_1 = substr ( $file_1 [name], 0, strrpos ( $file_1 [name], "." ) );
  $ext_1 = substr ( $file_1 [name], strrpos ( $file_1 [name], "." ) );
  
  $file_1 [name] = $name_1 . $ext_1;
  $i = 0;
  
  while ( file_exists ( '../../file/' . iconv ( "utf-8", "euc-kr", $file_1 [name] ) ) ) {
   $i ++;
   $file_1 [name] = $name_1."_" .$i.$ext_1;

  }
 }
 $fn_1 = date("YmdHis") . "1." . $ext_1;

 move_uploaded_file ( $file_1 [tmp_name], $_SERVER ['DOCUMENT_ROOT'] . '/file/' . iconv ( "utf-8", "euc-kr", $fn_1 ));
}

if ($file_2 [name]) {
 
 $ext_2 = array_pop ( explode ( ".", strtolower ( $file_2 [name] ) ) );
 
 if (@ereg ( $ext_2, "php|php3|php4|htm|inc|html" )) {
  echo "
  <script>
   alert('PHP, HTML파일은 업로드가 제한됩니다');
   history.back(1);
  </script>
  ";
  exit ();
 }
 
 $find_2 = '../../file/' . iconv ( "utf-8", "euc-kr", $file_2 [name] );
 
 if (file_exists ( $find_2 )) {
  $name_2 = substr ( $file_2 [name], 0, strrpos ( $file_2 [name], "." ) );
  $ext_2 = substr ( $file_2 [name], strrpos ( $file_2 [name], "." ) );
  
  $file_2 [name] = $name_2 . $ext_2;
  $i = 0;
  
  while ( file_exists ( '../../file/' . iconv ( "utf-8", "euc-kr", $file_2 [name] ) ) ) {
   $i ++;
   $file_2 [name] = $name_2."_" .$i.$ext_2;
  }
 }

 $fn_2 = date("YmdHis") . "2." . $ext_2;

 move_uploaded_file ( $file_2 [tmp_name], $_SERVER ['DOCUMENT_ROOT'] . '/file/' . iconv ( "utf-8", "euc-kr", $fn_2 )); 

// move_uploaded_file ( $file_2 [tmp_name], $_SERVER ['DOCUMENT_ROOT'] . '/file/' . iconv ( "utf-8", "euc-kr", $file_2 [name] ) );
}
$contents = strip_tags($contents,"<br><p><h2><img><line-height>");
$query = "insert into board (id, subject, name, contents, file_1, file_2, write_date, top, depth) values('$id', '$subject', '$_SESSION[name]', '$contents', '$fn_1', '$fn_2', '$write_date', '$top', '$depth')";
mysql_query ( $query, $conn );

?>

--------------------------------------------

한글파일명과 변환된 파일명을 저장해서 원본파일을 다운로드할수 있게 하는 방법좀 알수있을까요?

-------------------------------------------

download.php

<?php
$filepath = $_SERVER ['DOCUMENT_ROOT'] . '/file/' . $_GET [down];
$filesize = filesize ( $filepath );

header ("Content-Type:text/html; charset=UTF-8");
header("Content-Description: File Transfer");
header ("Pragma: no-cache; public" );
header ("Expires: 0" );
header ("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header ("Cache-Control : public");
header ("Content-Disposition: ".$_SERVER['HTTP_POST']." Generated Data");
header ("Content-Type: application/octet-stream" );
header ("Content-Disposition:attachment; filename=".$_GET[down].";");
header ("Content-Transfer-Encoding: binary" );
header ("Content-Length: $filesize" );

/*function isIE() {
if(stripos($_SERVER['HTTP_USER_AGENT'], 'Trident/7.0') != false) return true;
if(stripos($_SERVER['HTTP_USER_AGENT'], 'MSIE') != false) return true;
return false;
}*/

ob_clean ();
flush ();
readfile ( $filepath );
?>