Set featured image for multiple posts

Question

Does anyone know how I can set an image as featured image for multiple posts.

I have posts in a seri that I would like to use the same image as featured image.

bulk edit doesn't have featured image in there though.

Answer 1

You could hook into the publish_post action, check if a featured image has been set, and if not, assign the image you want as the featured image.

The publish_post Codex page has a nice example about changing a post after it has been published.

Answer 2

we can use echo get_the_post_thumbnail($page_ID, 'thumbnail'); in php tag, where is the page/post id the page/post from where we want to display the featured image. Here is a link for it get_the_post_thumbnail

Answer 3

You can do it in your function.php

update_post_meta($post_id, '_thumbnail_id', $thumbnail_id);

You can also create a function to do this, with as custom fields of the "main" post.

function setSameThumbnails($post_id) {
    // I assume that your custom field will be something like "31,64,43" for posts ids
    $posts = get_post_meta($post_id, 'same_thumbnail', true);
    if($posts)
    {
        $posts = explode($posts, ',');
        if(is_array($posts))
        {
            foreach($posts as $post)
            {
                update_post_meta($post, '_thumbnail_id', get_post_thumbnail_id($post_id));
            }           
        }
    }
}
add_action('save_post', 'setSameThumbnails');