게시판에서 excel 파일 업로드시 날짜관련 여쭈어 볼께요

그누보드 게시판 스킨 중에서 excel 게시판이 있던데 조금 응용을 했거든요

엑셀 중 필드에 날짜함수가 들어가 있는데 업로드 하면 엑셀의 날짜 함수 필드를

42780인가? 이런식으로 업로드 하더라구요,,,

이 부분을 해결해야 하는데 구글이랑 네이버 검색을 해도 원하는 답이 없어서 질문드려봅니다.

$wr_1이 엑셀의 날짜함수가 적용되어 있는 필드입니다.

소스는 아래와 같아요

<?php
include_once('./_common.php');

if(!$_POST[ex_type]){
 alert("파일유형을 선택해주세요");
}
// 상품이 많을 경우 대비 설정변경
set_time_limit ( 0 );
ini_set('memory_limit', '250M');

if(!$_FILES['excelfile']['tmp_name']) {
 alert("등록하실 파일이 없습니다");
}
if($_FILES['excelfile']['tmp_name']) {
    $file = $_FILES['excelfile']['tmp_name'];

    include_once(G5_LIB_PATH.'/Excel/reader.php');

    $data = new Spreadsheet_Excel_Reader();

    // Set output Encoding.
    $data->setOutputEncoding('UTF-8');

    /***
    * if you want you can change 'iconv' to mb_convert_encoding:
    * $data->setUTFEncoder('mb');
    *
    **/

    /***
    * By default rows & cols indeces start with 1
    * For change initial index use:
    * $data->setRowColOffset(0);
    *
    **/

    /***
    *  Some function for formatting output.
    * $data->setDefaultFormat('%.2f');
    * setDefaultFormat - set format for columns with unknown formatting
    *
    * $data->setColumnFormat(4, '%.3f');
    * setColumnFormat - set format for column (apply only to number fields)
    *
    **/

    $data->read($file);

    /*

     $data->sheets[0]['numRows'] - count rows
     $data->sheets[0]['numCols'] - count columns
     $data->sheets[0]['cells'][$i][$j] - data from $i-row $j-column

     $data->sheets[0]['cellsInfo'][$i][$j] - extended info about cell

        $data->sheets[0]['cellsInfo'][$i][$j]['type'] = "date" | "number" | "unknown"
            if 'type' == "unknown" - use 'raw' value, because  cell contain value with format '0.00';
        $data->sheets[0]['cellsInfo'][$i][$j]['raw'] = value if cell without format
        $data->sheets[0]['cellsInfo'][$i][$j]['colspan']
        $data->sheets[0]['cellsInfo'][$i][$j]['rowspan']
    */

    error_reporting(E_ALL ^ E_NOTICE);
 
 
 $write_table = "g5_write_{$bo_table}";

    for ($i = 2; $i <= $data->sheets[0]['numRows']; $i++) { //$i == 몇번째 라인부터 등록할건지
        $total_count++;
  
  

  
  if($_POST[ex_type] == "2"){
   $wr_id   = addslashes($data->sheets[0]['cells'][$i][1]);    //wr_id
   $wr_subject    = addslashes($data->sheets[0]['cells'][$i][4]);    //필드1
   $wr_1    = addslashes($data->sheets[0]['cells'][$i][2]);    //필드2
   $wr_2    = addslashes($data->sheets[0]['cells'][$i][3]);    //필드2
   $wr_3    = addslashes($data->sheets[0]['cells'][$i][5]);    //필드3
   $wr_4    = addslashes($data->sheets[0]['cells'][$i][6]);    //필드4
   $wr_5    = addslashes($data->sheets[0]['cells'][$i][7]);    //필드5  
   $wr_6    = addslashes($data->sheets[0]['cells'][$i][8]);    //필드6
   $wr_7    = addslashes($data->sheets[0]['cells'][$i][9]);    //필드7
   $wr_8    = addslashes($data->sheets[0]['cells'][$i][10]);    //필드8
   $wr_9    = addslashes($data->sheets[0]['cells'][$i][11]);    //필드9
   $wr_10   = addslashes($data->sheets[0]['cells'][$i][12]);    //필드10
   $wr_11   = addslashes($data->sheets[0]['cells'][$i][13]);    //필드10
   
    $sql = " update {$write_table}
     set wr_subject = '$wr_subject',
      wr_1 = '$wr_1',      
      wr_2 = '$wr_2',
      wr_3 = '$wr_3',
      wr_4 = '$wr_4',
      wr_5 = '$wr_5',
      wr_6 = '$wr_6',
      wr_7 = '$wr_7',
      wr_8 = '$wr_8',
      wr_9 = '$wr_9',
      wr_10 = '$wr_10',
      wr_11 = '$wr_11'
     where wr_id = '$wr_id' ";
     
   sql_query($sql);
    
  }else{
   
   $mb_id = $member['mb_id'];
   $wr_name = $member['mb_nick'];
   $wr_password = $member['mb_password'];
   $wr_email = $member['mb_email'];
   $wr_homepage = $member['mb_homepage'];
   
   $wr_num = get_next_num($write_table);
   $wr_reply = '';

   $wr_id   = addslashes($data->sheets[0]['cells'][$i][1]);    //wr_id
   $wr_subject    = addslashes($data->sheets[0]['cells'][$i][4]);    //필드1
   $wr_1    = addslashes($data->sheets[0]['cells'][$i][2]);    //필드2
   $wr_2    = addslashes($data->sheets[0]['cells'][$i][3]);    //필드2
   $wr_3    = addslashes($data->sheets[0]['cells'][$i][5]);    //필드3
   $wr_4    = addslashes($data->sheets[0]['cells'][$i][6]);    //필드4
   $wr_5    = addslashes($data->sheets[0]['cells'][$i][7]);    //필드5  
   $wr_6    = addslashes($data->sheets[0]['cells'][$i][8]);    //필드6
   $wr_7    = addslashes($data->sheets[0]['cells'][$i][9]);    //필드7
   $wr_8    = addslashes($data->sheets[0]['cells'][$i][10]);    //필드8
   $wr_9    = addslashes($data->sheets[0]['cells'][$i][11]);    //필드9
   $wr_10   = addslashes($data->sheets[0]['cells'][$i][12]);    //필드10
   $wr_11   = addslashes($data->sheets[0]['cells'][$i][13]);    //필드10
   
   $sql = " insert into $write_table
                set wr_num = '$wr_num',
                     wr_reply = '$wr_reply',
                     wr_comment = 0,
                     ca_name = '$ca_name',
                     wr_option = '$html,$secret,$mail',
                     wr_subject = '$wr_subject',
                     wr_content = '$wr_subject',
                     wr_link1 = '$wr_link1',
                     wr_link2 = '$wr_link2',
                     wr_link1_hit = 0,
                     wr_link2_hit = 0,
                     wr_hit = 0,
                     wr_good = 0,
                     wr_nogood = 0,
                     mb_id = '$mb_id',
                     wr_password = '$wr_password',
                     wr_name = '$wr_name',
                     wr_email = '$wr_email',
                     wr_homepage = '$wr_homepage',
                     wr_datetime = '".G5_TIME_YMDHIS."',
                     wr_last = '".G5_TIME_YMDHIS."',
                     wr_ip = '{$_SERVER['REMOTE_ADDR']}',
                     wr_1 = '$wr_1',
                     wr_2 = '$wr_2',
                     wr_3 = '$wr_3',
                     wr_4 = '$wr_4',
                     wr_5 = '$wr_5',
                     wr_6 = '$wr_6',
                     wr_7 = '$wr_7',
                     wr_8 = '$wr_8',
                     wr_9 = '$wr_9',
      wr_10 = '$wr_10',
      wr_11 = '$wr_11'";
     
   sql_query($sql);
   
   $wr_id = mysql_insert_id();
   
   // 부모 아이디에 UPDATE
   sql_query(" update $write_table set wr_parent = '$wr_id' where wr_id = '$wr_id' ");

   // 새글 INSERT
   //sql_query(" insert into {$g5['board_new_table']} ( bo_table, wr_id, wr_parent, bn_datetime, mb_id ) values ( '{$bo_table}', '{$wr_id}', '{$wr_id}', '".G5_TIME_YMDHIS."', '{$mb_id}' ) ");

   // 게시글 1 증가
   //sql_query("update {$g5['board_table']} set bo_count_write = bo_count_write + 1 where bo_table = '{$bo_table}'");
   
  }//type end
   
 
 
 }//for end

alert("업로드 되었습니다",G5_BBS_URL."/board.php?bo_table=".$bo_table);
}

?>