How to use blob using codeigniter? - codeigniter

Question

I'm currently creating a program using codeigniter where I want to have image upload and save it as blob to database. The problem is when I tried to upload the image, I received this error
The path to the image is not correct.
Your server does not support the GD function required to process this type of image.
Here's my code in controller:
public function do_upload() {
if($this->session->userdata('logged_in')) {
//print_r($_FILES);
$config = array(
'upload_path' => './public/img/uploads',
'upload_url' => base_url().'public/img/uploads',
'allowed_types' => 'gif|jpg|png|jpeg',
//'overwrite' => TRUE,
'max_size' => '1000KB',
'max_width' => '1024',
'max_height' => '768',
//'encrypt_name' => true,
);
$this->load->library('upload', $config);
//for($i=0; $i<count($_FILES['userfile']['name']); $i++) {
if (!$this->upload->do_upload()) {
$error = array('error' => $this->upload->display_errors());
$this->load->view('v_page/header_view');
$this->load->view('v_document/upload_error', $error);
$data['folderName'] = $this->dropdown->get_folder_details();
$data['departmentName'] = $this->dropdown->get_department_details();
$this->load->view('v_document/upload_view', $data);
$this->load->view('v_page/footer_view');
}
else {
$upload_data = $this->upload->data();
$this->_createThumbnail($upload_data['file_name']);
$data['thumbnail_name'] = $upload_data['raw_name']. '_thumb' .$upload_data['file_ext'];
$file_array = array(
'image' => "",
'image_name' => $upload_data['file_name'],
//'description' => "",
'date_created' => date('Y-m-d H:i:s', now()),
'date_modified' => date('Y-m-d H:i:s', now()),
'size' => $upload_data['file_size'],
'type' => $upload_data['image_type'],
'width' => $upload_data['image_width'],
'height' => $upload_data['image_height'],
);
$this->load->database();
$this->db->insert('tbl_image', $file_array);
$data = array('upload_data' => $this->upload->data());
$this->load->view('v_document/upload_success', $data);
}
//}
}
else {
redirect('login', 'refresh');
}
}
public function _createThumbnail($filename) {
$config['image_library'] = "gd2";
$config['source_image'] = "uploads/" .$filename;
$config['create_thumb'] = TRUE;
$config['maintain_ratio'] = TRUE;
$config['width'] = "80";
$config['height'] = "80";
$this->load->library('image_lib',$config);
if(!$this->image_lib->resize()) {
echo $this->image_lib->display_errors();
}
}
The image is uploaded successfully but the blob didn't work.

Answer 1

Try below suggestion:
Change from:
$config['source_image'] = "uploads/" .$filename;
To:
$config['source_image'] = "./uploads/" .$filename;