This project helps you upgrade your CodeIgniter3 apps to CodeIgniter4.
- The goal is to reduce upgrade costs.
- It provides compatible interfaces for common use cases in CodeIgniter3 apps.
- It also provides compatible interfaces to test code using ci-phpunit-test.
- It does not aim to be 100% compatible.
- This project is under early development.
- This project is under early development.
- We welcome Pull Requests!
- CodeIgniter 4.3.1 or later
- ci4-app-template can be used
- PHP 7.4 or later
- https://github.com/kenjis/ci3-to-4-news
- https://github.com/kenjis/ci3-to-4-news/tree/main/tests/app
- https://github.com/kenjis/ci4-online-games-store
- https://github.com/kenjis/ci4-qrcode
- (Japanese) https://github.com/kenjis/ci4-tettei-apps
If you use ci3-to-4-upgrade-helper, You can run the following code on CodeIgniter4.
app/Controllers/News.php
<?php
namespace App\Controllers;
use App\Models\News_model;
use Kenjis\CI3Compatible\Core\CI_Controller;
use Kenjis\CI3Compatible\Library\CI_Form_validation;
/**
* @property News_model $news_model
* @property CI_Form_validation $form_validation
*/
class News extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->model('news_model');
$this->load->helper('url_helper');
}
public function index()
{
$data['news'] = $this->news_model->get_news();
$data['title'] = 'News archive';
$this->load->view('templates/header', $data);
$this->load->view('news/index', $data);
$this->load->view('templates/footer');
}
public function view($slug = null)
{
$data['news_item'] = $this->news_model->get_news($slug);
if (empty($data['news_item'])) {
show_404();
}
$data['title'] = $data['news_item']['title'];
$this->load->view('templates/header', $data);
$this->load->view('news/view', $data);
$this->load->view('templates/footer');
}
public function create()
{
$this->load->helper('form');
$this->load->library('form_validation');
$data['title'] = 'Create a news item';
$this->form_validation->set_rules('title', 'Title', 'required');
$this->form_validation->set_rules('text', 'Text', 'required');
if ($this->form_validation->run() === false) {
$this->load->view('templates/header', $data);
$this->load->view('news/create');
$this->load->view('templates/footer');
} else {
$this->news_model->set_news();
$this->load->view('news/success');
}
}
}app/Models/News_model.php
<?php
namespace App\Models;
use Kenjis\CI3Compatible\Core\CI_Model;
class News_model extends CI_Model
{
public function __construct()
{
parent::__construct();
$this->load->database();
}
public function get_news($slug = false)
{
if ($slug === false) {
$query = $this->db->get('news');
return $query->result_array();
}
$query = $this->db->get_where('news', ['slug' => $slug]);
return $query->row_array();
}
public function set_news()
{
$this->load->helper('url');
$slug = url_title($this->input->post('title'), '-', true);
$data = [
'title' => $this->input->post('title'),
'slug' => $slug,
'text' => $this->input->post('text')
];
return $this->db->insert('news', $data);
}
}app/Views/news/create.php
<h2><?php echo $title; ?></h2>
<?php echo validation_errors(); ?>
<?php echo form_open('news/create'); ?>
<label for="title">Title</label>
<input type="input" name="title" /><br />
<label for="text">Text</label>
<textarea name="text"></textarea><br />
<input type="submit" name="submit" value="Create news item" />
</form>See How to Upgrade from CI3 to CI4.
If you have test code with ci-phpunit-test, see How to Upgrade Test Code from CI3 to CI4.
composer install
composer test // Run unit test
composer tests // Test and quality checks
composer cs-fix // Fix the coding style
composer sa // Run static analysys tools
composer run-script --list // List all commands
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent