Cannot use custom library in CodeIgniter 3 - php

Question

I want to use https://www.verot.net/php_class_upload_download.htm library in my project for resizing images. However, when I submit form it gives this error
I have loaded the library in the autoloader and I renamed library to "my_upload" and gave the same class name.
However, I do not know why this error occurs.
And here is my controller:
<?php
class Blog extends CI_Controller{
function __construct() {
parent::__construct();
}
public function add() {
if(!$this->session->userdata('logged_in')) {
$this->session->set_flashdata('not_loggedin','<div class="alert alert-success text-center">Please Login</div>');
redirect('login');
}
$data['title'] = 'Ədd nyus';
$data['author'] = $this->Blog_model->get_author();
$data['category'] = $this->Blog_model->get_category();
$this->load->view('templates/header');
$this->load->view('blog/add', $data);
$this->load->view('templates/footer');
}
public function create() {
if(!$this->session->userdata('logged_in')) {
$this->session->set_flashdata('not_loggedin','<div class="alert alert-success text-center">Please Login</div>');
redirect('login');
}
//insert image
$now = date("YmdHis");
$this->my_upload->upload($_FILES["userfile"]);
if ( $this->my_upload->uploaded == true ) {
$this->my_upload->allowed = array('jpg|png');
$this->my_upload->file_new_name_body = 'image_resized' . $now;
$this->my_upload->image_resize = true;
$this->my_upload->image_ratio_fill = true;
$this->my_upload->image_x = 360;
$this->my_upload->image_y = 236;
// $this->my_upload->image_ratio_y = true;
$this->my_upload->process('C:\xampp\htdocs\edu-center\assets\img\blog');
if ( $this->my_upload->processed == true ) {
$this->my_upload->clean();
$post_image = $_FILES["userfile"]["name"];
}
} else {
$post_image = '';
}
//insert the user registration details into database
$randnum = mt_rand(100000,999999);
$slugtitle = mb_strtolower($this->input->post('title_az'), 'UTF-8') . '-' .$randnum;
$slug = url_title($slugtitle);
$post_image = str_replace(' ', '_', $post_image);
$post_image = preg_replace('/_+/', '_', $post_image);
date_default_timezone_set('Asia/Baku');
$data = array(
'title_az' => strip_tags($this->input->post('title_az')),
'title_rus' => strip_tags($this->input->post('title_rus')),
'author_id' => $this->input->post('author_id'),
'category_id' => strip_tags($this->input->post('category')),
'body_az' => $this->input->post('body_az'),
'body_rus' => $this->input->post('body_rus'),
'date' => date("d-m-Y"),
'news_slug' => $slug,
'img' => $post_image
);
$this->Blog_model->add_news($data);
$this->session->set_flashdata('changed_msg','<div class="alert alert-success text-center">Ваши изменения были сохранены!</div>');
redirect('blog');
}
Where can be the problem?

Answer 1

imho the best way is to create a third party library for that
copy your class into your folder application/third_party/upload/
and in your controller you simply inlcude this file like:
require_once(APPPATH."third_party/upload/my_upload.php");
$objUpload = new my_upload($_FILES);
If you really want a library for that try the following:
The problem is your library gets instantiated by CI - you don't really have control over the constructor
the only way you could do is to include a "wrapper" library
e.g.
<?php
require_once(APPPATH."libraries/my_upload.php");
class Uploadwrapper_library
{
public function get($files)
{
return new my_upload($files);
}
}
in your controller you could do
$this->load->library("uploadwrapper_library");
$objMyUpload = $this->uploadwrapper_library->get($_FILES);

Answer 2

Well if you look at the file - system/libraries/Upload.php it's constructor requires a parameter...
public function __construct($config = array())
So with your MY_Upload class which is CI's way to allow you to override core classes, you need to follow suit with the class you are extending.
You've not shown your constructor so I don't know what you have attempted with your constructor...