image not storing in folder using codeigniter - codeigniter

Question

My code is given below i unable to store image in sepecfic folder in codeigniter. Image is storing database table but not store in the specific path.
Controller:
if (isset($_FILES['header_image']) && $_FILES['header_image']['name'] != "") {
$fileName="header_image_$id";
$ext= end(explode('.',$_FILES['header_image']['name']));
$file_name=$fileName.".".$ext;
$this->_upload('uploads/header_images/', "gif|jpg|png|jpeg", "header_image",$file_name);
$this->generic_model->updateRecord("blood_tips",array("header_image"=>'uploads/header_images/'.$fileName.".$ext"), array("id"=>$id));
}
private function _upload($uploadPath,$allowedTypes,$name,$file_name)
{
$config['file_name'] = $file_name;
$config['upload_path'] = $uploadPath;
$config['allowed_types'] = $allowedTypes;
$config['max_size'] = '100';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$this->load->library('upload', $config);
if (!$this->upload->do_upload($name))
{
return $this->upload->display_errors();
}
else
{
$data = array('upload_data' => $this->upload->data());
}
}

Answer 1

Your file upload parameter is different than proposed documentation .
$config['upload_path'] = './uploads/'; Notice "./" before path.

Answer 2

te correct way to upload file in CI, you need to make like this:
$fileName="header_image_$id";
$ext= end(explode('.',$_FILES['header_image']['name']));
$config['upload_path'] = './uploads/header_images/';
$config['file_name'] = $fileName.".".$ext;//The extension provided in the file name must also be an allowed file type.
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = 0;
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload())
{
$error = array('error' => $this->upload->display_errors());
$this->load->view('upload_form', $error);
}
else
{
$data = array('upload_data' => $this->upload->data());
$this->load->view('upload_success', $data);
}