The 'allowed_block_types_all' PHP filter in WordPress allows developers to control which block types are available for all users, including those without the 'unfiltered_html' capability. This can help improve site security…

​Learn how to use the WordPress `admin_post_send_email_notifications` PHP action, which fires on an authenticated admin post request where no action is supplied. Add the action using `add_action()` and customize it…

Learn how to use the WordPress `admin_post_delete_custom_post_type_item` PHP action to delete a custom post type item and redirect the user to a specific page. This action is fired on an…

The 'admin_post_thumbnail_size' PHP filter in WordPress allows developers to customize the size of the featured image thumbnail in the admin panel.

Adding stylesheets to WordPress admin pages with 'admin_print_styles-{$hook_suffix}' action.

​The `activate_{$plugin}` PHP action in WordPress is fired when a specific plugin is being activated

The 'add_inline_data' PHP action in WordPress adds inline data to a page or post.

​The article "Using WordPress `add_meta_boxes` PHP Action" explains how to use the `add_meta_boxes` action to add custom meta boxes to various post types in WordPress

The 'add_meta_boxes_{$post_type}' PHP action in WordPress allows developers to add custom meta boxes to post types.