Block Editor Filters

In WordPress 5.0, the blockBlock Block is the abstract term used to describe units of markup that, composed together, form the content or layout of a webpage using the WordPress editor. The idea combines concepts of what in the past may have achieved with shortcodes, custom HTML, and embed discovery into a single consistent API and user experience. editor is the default editor for all post types that both:

  • When registered (or using add_post_type_support()) declare that they support the editorfeature.
  • When registered, set their show_in_rest setting to true (the default is false).

In the GutenbergGutenberg The Gutenberg project is the new Editor Interface for WordPress. The editor improves the process and experience of creating new content, making writing rich content much simpler. It uses ‘blocks’ to add richness rather than shortcodes, custom HTML etc. pluginPlugin A plugin is a piece of software containing a group of functions that can be added to a WordPress website. They can extend functionality or add new features to your WordPress websites. WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. These can be free in the Plugin Directory or can be cost-based plugin from a third-party, there are two filters available to determine if a particular post, or a particular post type should use the block editor. gutenberg_can_edit_post, and gutenberg_can_edit_post_type, respectively.

In WordPress 5.0, the equivalent filters are use_block_editor_for_post, and use_block_editor_for_post_type. You can use them like so:

function my_post_filter( $use_block_editor, $post ) {
	$author = get_userdata( $post->post_author );
	if ( 'pento' === $author->user_login ) {
		return (bool) random_int( 0, 1 );

	return $use_block_editor;
add_filter( 'use_block_editor_for_post', 'my_post_filter', 10, 2 );

function my_post_type_filter( $use_block_editor, $post_type ) {
	if ( 'my_mystical_post_type' === $post_type ) {
		return false;

	return $use_block_editor;
add_filter( 'use_block_editor_for_post_type', 'my_post_type_filter', 10, 2 );
#5-0 #dev-notes