How to implement adding photos to the slider?

Question

Slick

Hello guys!
It is necessary to implement the function of adding photos through the admin panel, I created a new type of pages
In the functions.php file, I wrote:

add_action('init', function(){
        register_post_type('faq',array(
            'labels' => array(
                'name'               => 'Вопрос-ответ', 
                'singular_name'      => 'Вопрос', 
                'add_new'            => 'Добавить ответ', 
                'add_new_item'       => 'Добавление ответа', 
                'edit_item'          => 'Редактирование ответа', 
                'new_item'           => 'Новый ответ', 
                'view_item'          => 'Смотреть ответ', 
                'search_items'       => 'Искать искать ответ',
                'not_found'          => 'Не найдено', 
                'not_found_in_trash' => 'Не найдено в корзине', 
                'parent_item_colon'  => '', 
                'menu_name'          => 'ЧАВО', 
            ),
            
            'public'              => false,
            'show_ui'             => true,
            'menu_position'       => null,
            'menu_icon'           => null,
            'hierarchical'        => false,
            'supports'            => [ 'editor' ],
    )   );
        });

        function getPhoto(){
            $args = array(
                'orderby'   => 'date',
                'order'     => 'ASC',
                'post_type' => 'faq',
            );
            return get_posts($args);
        }

To load content through the editor and unload it on the page, for this I wrote the following in html:

<div class="silk_inner">
                <?php foreach(getPhoto() as $post): ?>
                    <div class="slide_img"> <?php echo $post -> post_editor; ?> </div>
                <?php endforeach; ?>
</div>

But for some reason the images are not showing up.