HtmlCacheUpdaterVaryUrlsHook.php
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HtmlCacheUpdaterVaryUrlsHook.php
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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 );
	}