CodeIgniter Image Upload Not Working and No Errors - php

Question

Okay so I've been messing with this for a couple hours now, reading the docs and browsing forums but I cannot find out why this upload form isn't working.
The entire form works perfectly, data saves to the DB and everything. But I just added an image upload input and it doesn't work! I have followed the exact tutorial in the docs, as well as several others.
Here is the code that processes the form submit ($this->page_m is my model):
public function edit ($id = NULL)
{
// Fetch a page or set a new one
if ($id) {
$this->data['page'] = $this->page_m->get($id);
count($this->data['page']) || $this->data['errors'][] = 'page could not be found';
}
else {
$this->data['page'] = $this->page_m->get_new();
}
// Pages for dropdown
$this->data['pages_no_parents'] = $this->page_m->get_no_parents();
// Process the form
if ($this->form_validation->run('page_rules') == TRUE) {
$data = $this->page_m->array_from_post(array(
'title',
'slug',
'body',
'template',
'parent_id'
));
if(!empty($_FILES['userfile'])) {
$this->do_upload();
}
$this->page_m->save($data, $id);
redirect('admin/page');
}
// Load the view
$this->data['subview'] = 'admin/page/edit';
$this->load->view('admin/_layout_main', $this->data);
}
and here is the code that processes the photo upload, which is called right after the $this->form_validation->run() check:
//upload a slider photo
public function do_upload() {
$config = array(
'allowed_types' => 'jpg|jpeg|gif|png',
'upload_path' => site_url('uploads/')
);
$this->load->library('upload');
$this->upload->initialize($config);
$field_name = "userfile";
if ( ! $this->upload->do_upload($field_name)) {
$this->data['error'] = array('error' => $this->upload->display_errors());
$this->data['subview'] = 'admin/page/edit';
$this->load->view('admin/_layout_main', $this->data);
} else {
return true;
}
}
I have purposely made this upload script as simple and basic as possible for debugging purposes, but still I have had no success in getting this form to upload properly.
After I get the upload working I need to save the image name in my database table, but that is besides the point right now. I just need to get this actually uploading.
SOLVED -- INVALID UPLOAD DIRECTORY

Answer 1

To debug your script you should try and echo out the value returned by $this->upload->display_errors();
Try changing your do_upload() methods last if{} else {} statement to the following:
if ( ! $this->upload->do_upload($field_name)) {
// return the error message and kill the script
echo $this->upload->display_errors(); die();
$this->data['error'] = array('error' => $this->upload->display_errors());
$this->data['subview'] = 'admin/page/edit';
$this->load->view('admin/_layout_main', $this->data);
} else {
return true;
}
Hopefully this will help you find out what is causing the problem.

Answer 2

same problem with mine, I resolve that by upgrading CodeIgniter,
my old version is 3.1.2, then i just upgrade to CI-3.1.3,
just replace the system folder in root folder,
after that, the problem resolve in live server,
i hope my suggest is useful to use