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<?php
namespace MediaWiki\Cache\Hook;
/**
* This is a hook handler interface, see docs/Hooks.md.
* Use the hook name "HtmlCacheUpdaterVaryUrls" to register handlers implementing this interface.
*
* @stable to implement
* @ingroup Hooks
*/
interface HtmlCacheUpdaterVaryUrlsHook {
/**
* This hook is used to add variants of URLs to purge from HTTP caches.
*
* Extensions that provide site-wide variants of all URLs, such as by serving from an
* alternate domain or path, can use this hook to append alternative URLs for each url in
* $urls.
*
* @since 1.35
*
* @param array $urls Canonical URLs
* @param array &$append Append alternative URLs for $urls
* @return bool|void True or no return value to continue or false to abort
*/
public function onHtmlCacheUpdaterVaryUrls( $urls, &$append );
}
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