使用 move_uploaded_file 上传文件

Question

I am trying to upload a file but unable to upload. It shows flg value 2. Can some one describe the problem.

$file = $_FILES['file'];
$file_name = $file['name'];
$file_size = $file['size'];
$file_error = $file['error'];
$file_ext = explode('.', $file_name);
$file_ext = strtolower(end($file_ext));
$file_tmp = $file['tmp_name'];
$file_destination = 'upload/' . $title .'.' . $file_ext;
if($file_size < 2097152){
  if(move_uploaded_file($file_tmp, $file_destination)){
    $flg = 1;
  }
  else
  {
    $flg = 2;
  }
}
else
{
  $flg = 3;
}

Answer 1

You should use document_root to get absolute path like this:

$file_destination = $_SERVER['DOCUMENT_ROOT'] . "/upload/" . basename($_FILES['image']['name']);
move_uploaded_file($_FILES["image"]["tmp_name"], $file_destination);