Show Error: The upload path does not appear to be valid - php

Question

I am try to upload a image by php codeigniter but show "The upload path does not appear to be valid."
This Action is performed in xampp server and window 10
public function do_upload($username) {
$config = array(
'upload_path' => "./assets/images/",
'allowed_types' => "gif|jpg|png|jpeg",
'overwrite' => TRUE,
'max_size' => "2048000",
'max_height' => "768",
'max_width' => "1024"
);
$this->load->library('upload', $config);
if ($this->upload->do_upload()) {
$data = array('upload_data' => $this->upload->data());
print_r($data);
} else {
$error = array('error' => $this->upload->display_errors());
print_r($error);
}
}
This code i used i chek many time but i not found error
What error in the code,
If i use this same code in other project it will work but not in the main project , Please help, Thanks in advance

Answer 1

In CodeIgniter you should always try and use the constant APPPATH to find the application folder.
APPPATH is the best because it dynamically retrieves the proper filesystem directory structure no matter which operating system you are on. This ensures that all file paths in your code are going to be correct.
However if you are not trying to get to the Application folder. You can use the FCPATH constant which dynamically points to the front controller of your application.
You are getting this error because the path to your /assets/images folder is not valid. You need to MAKE SURE that the path is correct.

Answer 2

first you should check you have created folder assets/images folder in root directory because in config this path is defined
$config = [
'upload_path' => "./assets/images/",
'allowed_types' => "gif|jpg|png|jpeg",
'overwrite' => TRUE,
'max_size' => "2048000",
'max_height' => "768",
'max_width' => "1024"
];
$this->load->library('upload',$config);
$this->load->library('form_validation');
$this->form_validation->set_error_delimiters('<div style="color:red;" class="error">', '</div>');
if$this->upload->do_upload()){
$img = $this->upload->data();
$img_name = base_url('uploads/'.$img['file_name']);
$data = $this->input->post();
$data['image_path'] = $img_name;
unset($data['submit']);
return $this->flash_message(
$this->articlemodel->add_article($data),
'Article added sucessfully',
'Article added to failed'
);
}
else
{
$upload_error = $this->upload->display_errors;
}

Answer 3

It is very simple to resolve
If directory inside the application folder
application -> assets -> images
'upload_path' => APPPATH. 'assets/images/';
If directory outside of the application folder
root folder -> assets -> images
'upload_path' => FCPATH. 'assets/images/';