The `WP_Sitemaps_Provider::get_sitemap_url()` method calls the PHP native `http_build_query()` function, the second parameter of which is the ''optional'' `$numeric_prefix` parameter which expects a `string`.
A parameter being optional, however, does not automatically make it nullable.
As of PHP 8.1, passing `null` to a non-nullable PHP native function will generate a deprecation notice.
In this case, this function call yielded a `http_build_query(): Passing null to parameter #2 ($numeric_prefix) of type string is deprecated` notice.
Changing the `null` to an empty string fixes this without a backward compatibility break.
This change is already covered by tests as 14 of the existing tests failed on these function calls when running the tests on PHP 8.1.
References:
* [https://www.php.net/manual/en/function.http-build-query.php PHP Manual: http_build_query()]
* [https://wiki.php.net/rfc/deprecate_null_to_scalar_internal_arg PHP RFC: Deprecate passing null to non-nullable arguments of internal functions]
Follow-up to [48470].
Props jrf.
See #53635.
Built from https://develop.svn.wordpress.org/trunk@51652
git-svn-id: http://core.svn.wordpress.org/trunk@51258 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This avoids a PHP warning during sitemap generation if `get_term_link()` returns an error, e.g. due to term ID being shared between multiple taxonomies.
Additionally, pass the `$taxonomy` argument to `get_term_link()` to properly disambiguate the call.
Props dd32.
Fixes#51416.
Built from https://develop.svn.wordpress.org/trunk@49137
git-svn-id: http://core.svn.wordpress.org/trunk@48899 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This brings `wp_count_terms()` in line with other taxonomy functions such as `get_terms()` which technically no longer require a taxonomy. Similar to the previously modified functions, no deprecation warning is triggered when using the legacy signature.
Fixes#36399.
Built from https://develop.svn.wordpress.org/trunk@48840
git-svn-id: http://core.svn.wordpress.org/trunk@48602 1a063a9b-81f0-0310-95a4-ce76da25c4cd
The previous filter failed the goal of allowing developers to filter all providers before they are registered, since it only filtered the built-in ones.
The more specific `wp_sitemaps_add_provider` filter enables exactly that, as it filters every sitemap provider right before it is added to the sitemaps registry.
Props pbiron, pfefferle, Chouby, swissspidy.
Fixes#50660.
Built from https://develop.svn.wordpress.org/trunk@48543
git-svn-id: http://core.svn.wordpress.org/trunk@48305 1a063a9b-81f0-0310-95a4-ce76da25c4cd
If sitemaps are disabled, previously there would be a rewrite rule for the sitemap endpoint. This endpoint would display the homepage since there was a rewrite rule. Now, Sitemaps are loaded, and the proper HTTP headers are returned.
Fixes#50643.
Props swissspidy, kraftbj, donmhico.
Built from https://develop.svn.wordpress.org/trunk@48523
git-svn-id: http://core.svn.wordpress.org/trunk@48285 1a063a9b-81f0-0310-95a4-ce76da25c4cd
If there are no pages and no static homepage, there will still be one sitemap including the homepage URL.
This change ensures that this sitemap is correctly listed in the sitemap index.
Props Chouby, pacifika, elrae.
Fixes#50571.
Built from https://develop.svn.wordpress.org/trunk@48476
git-svn-id: http://core.svn.wordpress.org/trunk@48245 1a063a9b-81f0-0310-95a4-ce76da25c4cd
While web crawlers are able to discover pages from links within the site and from other sites, XML sitemaps supplement this approach by allowing crawlers to quickly and comprehensively identify all URLs included in the sitemap and learn other signals about those URLs using the associated metadata.
See https://make.wordpress.org/core/2020/06/10/merge-announcement-extensible-core-sitemaps/ for more details.
This feature exposes the sitemap index via `/wp-sitemap.xml` and exposes a variety of new filters and hooks for developers to modify the behavior. Users can disable sitemaps completely by turning off search engine visibility in WordPress admin.
This change also introduces a new `esc_xml()` function to escape strings for output in XML, as well as XML support to `wp_kses_normalize_entities()`.
Props Adrian McShane, afragen, adamsilverstein, casiepa, flixos90, garrett-eclipse, joemcgill, kburgoine, kraftbj, milana_cap, pacifika, pbiron, pfefferle, Ruxandra Gradina, swissspidy, szepeviktor, tangrufus, tweetythierry.
Fixes#50117.
See #3670. See #19998.
Built from https://develop.svn.wordpress.org/trunk@48072
git-svn-id: http://core.svn.wordpress.org/trunk@47839 1a063a9b-81f0-0310-95a4-ce76da25c4cd
