How to use public variables from controller in views in CI 4

PHP Code:

$view = \Config\Services::renderer();
$data = [
        'blog_title'  => 'My Blog Title',
        'blog_heading' => 'My Blog Heading'
];

echo $view ->setData($data)
            ->render('blog_template'); 


https://codeigniter.com/user_guide/outgo...ta#setData
https://codeigniter.com/user_guide/outgo...ht=setdata