wphooks.info - admin_post_thumbnail_html

admin_post_thumbnail_html

The hook occurs in the following file:

wp-admin/includes/post.php:
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	 * Filters the admin post thumbnail HTML markup to return.
	 *
	 * @since 2.9.0
	 * @since 3.5.0 Added the `$post_id` parameter.
	 * @since 4.6.0 Added the `$thumbnail_id` parameter.
	 *
	 * @param string $content      Admin post thumbnail HTML markup.
	 * @param int    $post_id      Post ID.
	 * @param int    $thumbnail_id Thumbnail ID.
	 */
	return apply_filters( 'admin_post_thumbnail_html', $content, $post->ID, $thumbnail_id );
}

/**
 * Check to see if the post is currently being edited by another user.
 *
 * @since 2.5.0
 *
 * @param int $post_id ID of the post to check for editing.
 * @return int|false ID of the user with lock. False if the post does not exist, post is not locked,