Filter the user count before queries are run. Return a non-null value to cause count_users() to return early.
is_taxonomy_viewable
Determines whether a taxonomy is considered “viewable”.
wp_insert_term_duplicate_term_check
Filters the duplicate term check that takes place during term creation.
unregistered_taxonomy_for_object_type
Fires after a taxonomy is unregistered for an object type.
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registered_taxonomy_for_object_type
Fires after a taxonomy is registered for an object type.
register_taxonomy
Creates or modifies a taxonomy object.
register_rest_route
Registers a REST API route.
rest_post_search_query
Filters the query arguments for a search request.
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has_post_thumbnail
Filters whether a post has a post thumbnail.
wp_safe_redirect
Performs a safe (local) redirect, using wp_redirect().
x_redirect_by
Filters the X-Redirect-By header.
wp_redirect
Redirects to another page.
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wp_check_site_meta_support_prefilter
Aborts calls to site meta if it is not supported.
wp_update_blog_public_option_on_site_update
Updates the `blog_public` option for a given site ID.
wp_cache_set_sites_last_changed
Sets the last changed time for the ‘sites’ cache group.