how to pass a $errors array to the view file in php ?

my comment store file code

<?php

$db = new Database();


$user_id = $_POST['user_id'];
$post_id = $_POST['post_id'];
$comment = $_POST['comment'];


// validating the comment 
$errors = [];

if (strlen(trim($comment)) == 0) {
    $errors['comment'] = "Comment is required.";
} else if (strlen(trim($comment)) > 1000) {
    $errors['comment'] = "The maximum length of a comment should be 1000 characters.";
}

// storing the comment into the comments table
if(empty($errors))
{
    $comment = $db->query(
        "INSERT INTO comments (post_id, user_id, comment) 
    VALUES (:post_id, :user_id, :comment)",
        [
            'post_id' => $post_id, 'user_id' => $user_id, 'comment' => $comment
        ]
    );


    if ($comment) {
        $_SESSION['msg'] = "Commented successfully!";
        header("location: /posts/post?post={$post_id}");
    }
}else{
    // how to pass the error to that form
   

    // Redirect back to the form page
    header("location: /posts/post?post={$post_id}");
}

my routes file url route

$router->get('/posts/post', "core/Http/controllers/posts/show.php");

my Router file code

<?php
require base_path("core/middleware/Middleware.php");
class Router
{

    protected $routes = [];

    public function add($uri, $controller, $method)
    {
        $this->routes[] = [
            'uri' => $uri,
            'controller' => $controller,
            'method' => $method,
            'middleware' => null

        ];
        return $this; //return object of the $routes
    }

    public function get($uri, $controller)
    {
        return $this->add($uri, $controller, "GET");
    }

    public function post($uri, $controller)
    {
        return $this->add($uri, $controller, "POST");
    }

    public function put($uri, $controller)
    {
        return $this->add($uri, $controller, "PUT");
    }

    public function patch($uri, $controller)
    {
        return $this->add($uri, $controller, "PATCH");
    }

    public function delete($uri, $controller)
    {
        return $this->add($uri, $controller, "DELETE");
    }



    public function route($uri, $method)
    {
        foreach ($this->routes as $route) {
            if ($route['uri'] == $uri && $route['method'] == strtoupper($method)) {

                // middleware instance will auto load
                if ($route['middleware']) {

                    $middleware = Middleware::MAP[$route['middleware']];
                    // var_dump($middleware);
                    $middleware = new $middleware();
                    $middleware->handle();
                }

                return require base_path($route['controller']);
            }
        }

        // abort if uri not found 
        $this->abort(404);
    }

    public function only($key)
    {
        $this->routes[array_key_last($this->routes)]['middleware'] = $key;
        // return $this;
    }

    protected function abort($code = 404)
    {
        // http_response_code($code);
        views("status-error/{$code}.php");
        die();
    }
}