staylor / WordPress

	// Sanitize post type name

	$post_type = sanitize_key( $post_type );

	if ( empty( $post_type ) || strlen( $post_type ) > 20 ) {

		_doing_it_wrong( __FUNCTION__, __( 'Post type names must be between 1 and 20 characters in length.' ), '4.2.0' );

		return new WP_Error( 'post_type_length_invalid', __( 'Post type names must be between 1 and 20 characters in length.' ) );

	}

	$post_type_object = new WP_Post_Type( $post_type, $args );

	$post_type_object->add_supports();

	);

	$args = array_merge( $defaults, $args );

	if ( empty( $taxonomy ) || strlen( $taxonomy ) > 32 ) {

		_doing_it_wrong( __FUNCTION__, __( 'Taxonomy names must be between 1 and 32 characters in length.' ), '4.2.0' );

		return new WP_Error( 'taxonomy_length_invalid', __( 'Taxonomy names must be between 1 and 32 characters in length.' ) );

	}

	// If not set, default to the setting for public.

	if ( null === $args['publicly_queryable'] ) {