File uploaded successfully but not showing in upload_path folder - php

Question

I successfully uploaded the file based on the "$this->upload->data()" message. However, the file doesn't show up in D:/Drive/webcode/uploads folder. Can anyone help out? Thank you.
***move_uploaded_file() works, but not do_upload
[Codeigniter 3]
View(upload_form.php)
<form method="post" enctype="multipart/form-data">
<input type="file" name="userfile">
<input type="submit" name="submit">
</form>
Controller(Upload)
function __construct()
{
parent::__construct();
$this->load->helper('form');
$this->load->helper('url');
}
public function jobapply()
{
//Show view form
$this->load->view('upload_form');
if($this->input->post('submit')){ //Check submit button
//Confirm file is transfered here
echo basename($_FILES["userfile"]["name"]).'<br>';
//Upload Process
$config['upload_path'] = './upload/';
$this->load->library('upload', $config);
$this->upload->do_upload('userfile');
var_dump(is_dir($config['upload_path'])); //Check if this path exist
//return the uploaded data after executing do_upload()
echo "<br><pre>";
print_r($this->upload->data());
echo "</pre>";
}
}
Output
1969.png
bool(true)
Array
(
[file_name] => 1969.png
[file_type] => image/png
[file_path] => D:/Drive/webcode/uploads/
[full_path] => D:/Drive/webcode/uploads/1969.png
[raw_name] => 1969
[orig_name] =>
[client_name] => 1969.png
[file_ext] => .png
[file_size] => 1217976
[is_image] => 1
[image_width] =>
[image_height] =>
[image_type] =>
[image_size_str] =>
)
Image: Folder is empty

Answer 1

Add $config['allowed_types'] = '*'; and check.

Answer 2

Solved without using CI upload
Just use below in Controller:
$path = './upload/';
$temp = $_FILES['userfile']['tmp_name'];
move_uploaded_file($temp, $path . $name);
echo 'Success';
Thats it, I wouldn't bother if using CI Upload library or not, as long as it works. Cheers.