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davis.lasis · 11-17-2022, 05:18 AM

First of all, you should read CI manual / documentation and from that understand what you can do / make hand-in-hand with what you need to achieve.
This forum is not meant for teaching you understand programming and developing, or do a work for you, but for solving issues and helping each other.

https://codeigniter4.github.io/CodeIgnit...youts.html
https://codeigniter4.github.io/CodeIgnit...dules.html

Long story short:
Extend controller to some kind of base controller, where base controller always collects all "routine" stuff. Use view layouts with extending and creating sections.

This is how i use CI benefits. This is jsut a basic and totally simple example.

App/Controllers/BaseController.php

PHP Code:
<?php 
namespace App\Controllers;

use CodeIgniter\Controller;

class BaseController extends Controller
{
 public object $data;

 public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
    {
        parent::initController($request, $response, $logger);

        $this->initData();
    }

    protected function initData()
    {
    // collect all "routine" code, data, etc...
    $this->data = (object) [
        'layout' => (object) [
        'header_title' => '',
        ]
        'menu' => [
        0 => [
        'title' => 'Contact Us',
        'url' => '/contact-us',
        ],
        1 => [
        'title' => 'About us',
        'url' => '/abour-us',
        ],
        ],
        'misc' => [],
        ];
    }

    public function render(string $name): string
    {
        return view($name, (array) $this->data);
    }
} 

App/Controllers/MainController.php

PHP Code:
<?php 
namespace App\Controllers;

use App\Controllers\BaseController;

class MainController extends BaseController
{
 public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
    {
        parent::initController($request, $response, $logger);
    }

    public function index(): string
    {
    $this->data->layout->header_title = 'Homepage';

        return $this->render(__FUNCTION__);
    }
} 

App/Views/layout.php

PHP Code:
<!DOCTYPE html>
<html lang="en" dir="ltr">
 <?=$this->include('/views/layout_header');?>
 <body>
 <?=$this->renderSection('content');?>
 </body>
 <?=$this->include('/views/layout_footer');?>
</html> 

App/Views/layout_header.php

PHP Code:
<head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
    <title><?=$layout->header_title;?></title>
</head> 

App/Views/layout_footer.php

PHP Code:
<footer>
 <?php foreach ($menu as $link) { ?>

 <a href="<?=$link['url'];?>">
 <?=$link['title'];?>
 </a>

 <?php } ?>
</footer> 

App/Views/index.php

PHP Code:
<?=$this->extend('App\Views\layout');?>

<?=$this->section('content');?>

 <h1>Hello, World!</h1>
<p>This is <?=$layout->header_title;?></p>

<?=$this->endSection();?>