YoastSEOサイトマップから特定コンテンツ(カスタム投稿,著者,タクソノミーなど)を除外する方法

if ( is_plugin_active( 'wordpress-seo/wp-seo.php') || is_plugin_active( 'wordpress-seo-premium/wp-seo-premium.php' ) ) {
   /* Let's do cool things */
}

/**
 * Excludes posts from XML sitemaps.
 *
 * @return 配列にposts IDを入れてください。
 */
function exclude_posts_from_xml_sitemaps() {
    return [ 1, 2, 3 ];
}

add_filter( 'wpseo_exclude_from_sitemap_by_post_ids', 'exclude_posts_from_xml_sitemaps' );

/**
 * Exclude a post type from XML sitemaps.
 *
 * @param boolean $excluded  Whether the post type is excluded by default.
 * @param string  $post_type The post type to exclude.
 *
 * @return bool Whether or not a given post type should be excluded.
 */
function sitemap_exclude_post_type( $excluded, $post_type ) {
    return $post_type === 'recipes';
}

add_filter( 'wpseo_sitemap_exclude_post_type', 'sitemap_exclude_post_type', 10, 2 );

/**
 * Exclude a post type from XML sitemaps.
 *
 * @param boolean $excluded  Whether the post type is excluded by default.
 * @param string  $post_type The post type to exclude.
 *
 * @return bool Whether or not a given post type should be excluded.
 */
function sitemap_exclude_post_type( $excluded, $post_type ) {
    return in_array($post_type, array('recipes', 'fruits', 'fishes'), true);
}

add_filter( 'wpseo_sitemap_exclude_post_type', 'sitemap_exclude_post_type', 10, 2 );

/**
 * Exclude a taxonomy from XML sitemaps.
 *
 * @param boolean $excluded Whether the taxonomy is excluded by default.
 * @param string  $taxonomy The taxonomy to exclude.
 *
 * @return bool Whether or not a given taxonomy should be excluded.
 */
function sitemap_exclude_taxonomy( $excluded, $taxonomy ) {
    return $taxonomy === 'ingredients';
}

add_filter( 'wpseo_sitemap_exclude_taxonomy', 'sitemap_exclude_taxonomy', 10, 2 );

/**
 * サイトマップから著者ID 5の著者を除外
 *
 * @param array $users Array of User objects to filter through.
 *
 * @return array The remaining authors.
 */
function sitemap_exclude_authors( $users ) {
   return array_filter( $users, function( $user ) {
        if ( $user->ID === 5 ) {
            return false;
        }

        return true;
    } );
}

add_filter( 'wpseo_sitemap_exclude_author', 'sitemap_exclude_authors', 10, 1 );

function sitemap_exclude_authors( $users ) {
   return array_filter( $users, function( $user ) {
            return false;
    } );
}

add_filter( 'wpseo_sitemap_exclude_author', 'sitemap_exclude_authors', 10, 1 );

/**
 * タームID 3と11のタームを除外
 *
 * @param array $terms Array of term IDs already excluded.
 *
 * @return array The terms to exclude.
 */
function sitemap_exclude_terms( $terms ) {
    return [ 3, 11 ];
}

add_filter( 'wpseo_exclude_from_sitemap_by_term_ids', 'sitemap_exclude_terms', 10, 1 );

/**
 * Writes additional/custom XML sitemap strings to the XML sitemap index.
 *
 * @param string $sitemap_custom_items XML describing one or more custom sitemaps.
 *
 * @return string The XML sitemap index with the additional XML.
 */
function add_sitemap_custom_items( $sitemap_custom_items ) {
    $sitemap_custom_items .= '
<sitemap>
<loc>http://www.example.com/external-sitemap-1.xml</loc>
<lastmod>2017-05-22T23:12:27+00:00</lastmod>
</sitemap>';
    return $sitemap_custom_items;
}

add_filter( 'wpseo_sitemap_index', 'add_sitemap_custom_items' );