我正在使用 Yoast SEO 插件，我正在尝试使用“wpseo_sitemap_entry”过滤器从帖子 XML 站点地图中手动排除帖子，但到目前为止还没有运气。
这是我当前的代码：
function sitemap_exclude_post( $url, $type, $post) {
if($post->ID == 6298 ) {
return false;
}
return $url;
}
add_filter( 'wpseo_sitemap_entry', 'sitemap_exclude_post', 1, 3 );
任何建议将不胜感激？
注意：我知道可以通过 Yoast 插件的后端手动输入帖子 ID 来完成，但我需要通过过滤器来完成。上面的代码稍后将进一步更改，以从 wordpress 中的类别自动获取帖子的帖子 ID（single.php）。
我知道这个问题已经得到解答，但我需要一种更动态的方法来解释@clodclod91 的解释，因为我不止一次收到这个问题，所以我写了一些关于如何以“更流畅的方式”做到最好的代码，而不是硬编码价值观。
我希望它可以帮助一些人。
我还写了一篇文章，进行了更多解释。在这里阅读。
/**
* Set all excluded items for sitemap in a transient
*
* @return mixed
*/
function beee_get_sitemap_excludes_transient() {
// get transient
$output = get_transient( 'beee_exclude_sitemap' );
// if transient returns false, create it
if ( false == $output ) {
$exclude_args = array(
'post_type' => [ 'page' ], // change this to the post types you want excluded
'posts_per_page' => -1, // all items of course
'meta_query' => array(
array(
'key' => 'beee_exclude_sitemap',
'value' => '1',
'compare' => '=',
),
),
'orderby' => 'ID', // recommend to set to ID so 'the order is easier to compare later on', otherwise it can create issues
'order' => 'ASC', // same, just sort ASC to avoid issues
);
$excluded_items = get_posts( $exclude_args );
if ( count( $excluded_items ) > 0 ) {
// if there are items and create an empty array
$exclude = [];
foreach( $excluded_items as $item ) {
// add post id to array
$exclude[] = $item->ID;
}
// create a string from an array since Yoast stores a string, not an array
$output = implode( ',', $exclude );
// set transient with a 24-hour expiration
set_transient( 'beee_exclude_sitemap', $output, 24 * HOUR_IN_SECONDS );
}
}
return $output;
}
/**
* Set Yoast settings from transient
*/
function beee_exclude_pages_sitemap( $post_id ) {
// get our excluded items from transient
$our_excluded_posts = beee_get_sitemap_excludes_transient();
// check if 'exclude' field has been set (in the post)
if ( 1 == get_field( 'beee_exclude_sitemap', $post_id ) ) {
// if yes, check if it exists in transient
if ( in_array( $post_id, explode( ',', $our_excluded_posts ) ) ) {
// yes, it's already included so we don't have to do anything
} else {
// no, it's not included so it needs to be added
// so we delete the transient (existing values)
delete_transient( 'beee_exclude_sitemap' );
}
} else {
// it has not been set in the post
if ( in_array( $post_id, explode( ',', $our_excluded_posts ) ) ) {
// if does exists in our stored transient, which it shouldn't be in there
// so we delete the transient (existing values)
delete_transient( 'beee_exclude_sitemap' );
}
}
// get our excluded ids from transient
// since we just cleared it, the transient doesn't exist and is retrieved from scratch
$our_excluded_posts = beee_get_sitemap_excludes_transient();
// get post ids from Yoast settings
$wpseo_xml = get_option( 'wpseo_xml' );
// compare Yoast's value with our items
if ( $wpseo_xml[ 'excluded-posts' ] == $our_excluded_posts ) {
// they are the same so we don't need to do anything
} else {
// they are not the same so we need to update the database with our new ids
update_option( 'wpseo_xml', $wpseo_xml );
}
}
add_action( 'save_post', 'beee_exclude_pages_sitemap' );
可以使用 update_option 函数。
$array = array(
"excluded-posts" => 6298
);
update_option('wpseo_xml', $array);
也应该在 add_filter 挂钩内工作。update_option 是一个 wp 函数，用于在表选项中插入或更新。Yoast SEO for XML Sitemap 的 wp_options 表中的键是 wpseo_xml。在值中有一个包含其他信息的数组：
a:18: {
s: 22: "disable_author_sitemap";
b: 1;
s: 22: "disable_author_noposts";
b: 1;
s: 16: "enablexmlsitemap";
b: 1;
s: 16: "entries-per-page";
i: 1000;
s: 14: "excluded-posts";
s: 7: "1,2,3,4";
s: 38: "user_role-administrator-not_in_sitemap";
b: 0;
s: 31: "user_role-editor-not_in_sitemap";
b: 0;
s: 31: "user_role-author-not_in_sitemap";
b: 0;
s: 36: "user_role-contributor-not_in_sitemap";
b: 0;
s: 35: "user_role-subscriber-not_in_sitemap";
b: 0;
s: 36: "user_role-authors_tes-not_in_sitemap";
b: 0;
s: 40: "user_role-authors_academy-not_in_sitemap";
b: 0;
s: 30: "post_types-post-not_in_sitemap";
b: 0;
s: 30: "post_types-page-not_in_sitemap";
b: 0;
s: 36: "post_types-attachment-not_in_sitemap";
b: 1;
s: 34: "taxonomies-category-not_in_sitemap";
b: 0;
s: 34: "taxonomies-post_tag-not_in_sitemap";
b: 0;
s: 37: "taxonomies-post_format-not_in_sitemap";
b: 0;
}
我在我的问题中发布的上述代码工作正常。
我刚刚按下 Yoast 仪表板“排除帖子”部分中的“保存更改”按钮，它就起作用了。不知道如何，但它正在工作。