Write the class of the controller for a framework on PHP

The controller is the entry point to our application + the logic of what needs to be done in general. The controller works with Models and passes the result to the View.

Let’s create the main class of the controller from which all other controllers will be inherited in the future. To do this, go to the vendor/core directory and create our new file called Controller.php

Add to this file:

namespace core;

abstract class Controller
{
    //data which the controller will receive from model and further will transfer in a View
    public array $data = [];

    //page metadata
    public array $meta = [];

    //page template
    public false|string $layout = '';

    //page view
    public string $view = '';

    //model object
    public object $model;

    //accept the url parameter which is transferred from the Router class
    public function __construct(public $route = []){
    }

    //get our model
    public function getModel()
    {   // get our model
        $model = 'app\models\\' . $this->route['admin_prefix'] . $this->route['controller'];
        //if the model file exists, create a new instance of this class
        if (class_exists($model)) {
            $this->model = new $model();
        }
    }

    public function getView()
    {
        //if there is $this->view then we will write it, if it does not exist we will write $this->route['action']
        $this->view = $this->view ?: $this->route['action'];

    }

    // a method that will record data for our controller which then pass them in the View
    public function set($data)
    {
        $this->data = $data;
    }
    //method that will write our metadata
    public function setMeta($title = '', $description = '', $keywords = '')
    {
       $this->meta = [
           'title' => $title,
           'description' => $description,
           'keywords' => $keywords,
       ];
    }
?>

All other controllers can now be inherited from our base controller.