nosuchfileexception — PHP Нет такой ошибки файла или каталога

Предупреждение: move_uploaded_file (C: \ mpp \ htdocs \ ch09 \ data2018_03_22_11_38_23_0.gif): не удалось открыть поток: нет такого файла или каталога в C: \ xampp \ htdocs \ ch09 \ концерт \ insert.php в строке 101

Предупреждение: move_uploaded_file (): невозможно переместить ‘C: \ xampp \ tmp \ phpE1D0.tmp’ в ‘C: \ mpp \ htdocs \ ch09 \ data2018_03_22_11_38_23_0.gif’ в C: \ xampp \ htdocs \ ch09 \ концерт \ вставка. PHP на линии 101

$upload_dir = "C:\xampp\htdocs\ch09\data";

Я думаю file_name установлен правильно, но uploaded_dir нет.

\xa пропущено, несмотря на то, что набирается правильно. Зачем?

<?php session_start(); ?>

<meta charset="utf-8">
<?php

$userid = $_SESSION["userid"];
if(isset($_REQUEST["page"]))
{
$page = $_REQUEST["page"];
}else{
$page = 1;
}

if(!$userid) {
echo("<script>
window.alert('로그인 후 이용해 주세요.')
history.go(-1)
</script>
");
exit;
}

if(isset($_REQUEST["mode"])){
$mode = $_REQUEST["mode"];
}else{
$mode ="";
}

if(isset($_REQUEST["num"])){
$num = $_REQUEST["num"];
}else{
$num = "";
}

if(isset($_REQUEST["html_ok"])) //checkbox는 체크해야 변수명 전달됨
$html_ok = $_REQUEST["html_ok"];
else
$html_ok = "";

$subject = $_REQUEST["subject"];
$content = $_REQUEST["content"];


// 다중 파일 업로드
$files = $_FILES["upfile"];
$count = count($files["name"]);
$upload_dir = "C:\xampp\htdocs\ch09\data\\";

$regist_day = date("Y-m-d (H:i)");  // 현재의 '년-월-일-시-분'을 저장
/*   단일 파일 업로드
$upfile_name     = $_FILES["upfile"]["name"];
$upfile_tmp_name = $_FILES["upfile"]["tmp_name"];
$upfile_type     = $_FILES["upfile"]["type"];
$upfile_size     = $_FILES["upfile"]["size"];
$upfile_error    = $_FILES["upfile"]["error"];
*/

for ($i=0; $i<$count; $i++)
{
$upfile_name[$i]     = $files["name"][$i];
$upfile_tmp_name[$i] = $files["tmp_name"][$i];
$upfile_type[$i]     = $files["type"][$i];
$upfile_size[$i]     = $files["size"][$i];
$upfile_error[$i]    = $files["error"][$i];

$file = explode(".", $upfile_name[$i]);
$file_name = $file[0];
$file_ext  = $file[1];

if (!$upfile_error[$i])
{
$new_file_name = date("Y_m_d_H_i_s");
$new_file_name = $new_file_name."_".$i;
$copied_file_name[$i] =  $new_file_name.".".$file_ext;
$uploaded_file[$i] = $upload_dir.$copied_file_name[$i];

if( $upfile_size[$i]  > 500000 ) {
echo("<script>
alert('업로드 파일 크기가 지정된 용량(500KB)을 초과합니다!<br>파일 크기를 체크해주세요! ');
history.go(-1)
</script>
");
exit;
}

if ( ($upfile_type[$i] != "image/gif") &&
($upfile_type[$i] != "image/jpeg")
)
{
echo("<script>
alert('JPG와 GIF 이미지 파일만 업로드 가능합니다!');
history.go(-1)
</script>
");
exit;
}

if (!move_uploaded_file($upfile_tmp_name[$i], $uploaded_file[$i]))
{
print $upfile_tmp_name[$i];
print $uploaded_file[$i];
echo("<script>
alert('파일을 지정한 디렉토리에 복사하는데 실패했습니다.$upfile_tmp_name[$i] AANNDD $uploaded_file[$i]');
history.go(-1)
</script>
");
exit;
}
}
}

include_once ''; "../lib/dbconn.php";       // dconn.php 파일을 불러옴
$pdo = db_connect();

if ($mode=="modify")
{
$num_checked = count($_POST['del_file']);
$position = $_POST['del_file'];

for($i=0; $i<$num_checked; $i++)                      // delete checked item
{
$index = $position[$i];
$del_ok[$index] = "y";
}

try{
$sql = "select * from phptest.concert where num=?";   // get target record
$stmh = $pdo->prepare($sql);
$stmh->bindValue(1, $num, PDO::PARAM_STR);
$stmh->execute();
$row = $stmh->fetch(PDO::FETCH_ASSOC);
} catch (PDOException $ex) {
print "오류: ".$ex->getMessage();
}

for ($i=0; $i<$count; $i++)                 // update DB with the value of file input box
{

$field_org_name = "file_name_".$i;
$field_real_name = "file_copied_".$i;

$org_name_value = $upfile_name[$i];
$org_real_value = $copied_file_name[$i];
if ($del_ok[$i] == "y")
{
$delete_field = "file_copied_".$i;
$delete_name = $row[$delete_field];

$delete_path = "./data/".$delete_name;

unlink($delete_path);

try{
$sql = "update phptest.concert set $field_org_name = ?, $field_real_name = ? where num=?";
$stmh = $pdo->prepare($sql);
$stmh->bindValue(1, $org_name_value, PDO::PARAM_STR);
$stmh->bindValue(2, $org_real_value, PDO::PARAM_STR);
$stmh->bindValue(3, $num, PDO::PARAM_STR);
$stmh->execute();
$pdo->commit();
} catch (PDOException $ex) {
$pdo->rollBack();
print "오류: ".$ex->getMessage();
}

}
else
{
if (!$upfile_error[$i])
{
try{
$pdo->beginTransaction();
$sql = "update phptest.concert set $field_org_name = ?, $field_real_name = ?, where num = ?";
$stmh = $pdo->prepare($sql);
$stmh->bindValue(1, $org_name_value, PDO::PARAM_STR);
$stmh->bindValue(2, $org_real_value, PDO::PARAM_STR);
$stmh->bindValue(3, $num, PDO::PARAM_STR);
$stmh->execute();
$pdo->commit();
} catch (PDOException $ex) {
print "오류: ".$ex->getMessage();
}
}
}

}
try{
$pdo->beginTransaction();
$sql = "update phptest.concert set subject=?, content=?, is_html=? where num=?";
$stmh = $pdo->prepare($sql);
$stmh->bindValue(1, $subject, PDO::PARAM_STR);
$stmh->bindValue(2, $content, PDO::PARAM_STR);
$stmh->bindValue(3, $html_ok, PDO::PARAM_STR);
$stmh->bindValue(4, $num, PDO::PARAM_STR);
$stmh->execute();
$pdo->commit();

} catch (PDOException $ex) {
$pdo->rollBack();
print "오류: ".$ex->getMessage();
}

}    //기존내용을 수정하는 경우..
else //신규 추가하는 경우.
{
if ($html_ok=="y")
{
$is_html = "y";
}
else
{
$is_html = "";
$content = htmlspecialchars($content);
}
try{
$pdo->beginTransaction();
$sql = "insert into phptest.concert(id, name, nick, subject, content, regist_day, hit, is_html, ";
$sql .= " file_name_0, file_name_1, file_name_2, file_copied_0,  file_copied_1, file_copied_2) ";
$sql .= "values(?,?,?,?,?,now(),0,?,?,?,?,?,?,?)";
$stmh = $pdo->prepare($sql);
$stmh->bindValue(1, $_SESSION["userid"],PDO::PARAM_STR);
$stmh->bindValue(2, $_SESSION["name"],PDO::PARAM_STR);
$stmh->bindValue(3, $_SESSION["nick"],PDO::PARAM_STR);
$stmh->bindValue(4, $subject, PDO::PARAM_STR);
$stmh->bindValue(5, $content,PDO::PARAM_STR);
$stmh->bindValue(6, $is_html,PDO::PARAM_STR);
$stmh->bindValue(7, $upfile_name[0],PDO::PARAM_STR);
$stmh->bindValue(8, $upfile_name[1],PDO::PARAM_STR);
$stmh->bindValue(9, $upfile_name[2],PDO::PARAM_STR);
$stmh->bindValue(10, $copied_file_name[0],PDO::PARAM_STR);
$stmh->bindValue(11, $copied_file_name[1],PDO::PARAM_STR);
$stmh->bindValue(12, $copied_file_name[2],PDO::PARAM_STR);
$stmh->execute();
$pdo->commit();
} catch (PDOException $ex) {
$pdo->rollBack();
print "오류: ".$ex->getMessage();
}

}
echo "<script>
location.href = 'list.php?page=$page';
</script>
";

?>