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ðŸ“ ..
ðŸ“„ Base_Page_Settings.php(6.82 KB)
ðŸ“„ BrowserCache_ConfigLabels.php(10.36 KB)
ðŸ“„ BrowserCache_Core.php(3.19 KB)
ðŸ“„ BrowserCache_Environment.php(31.64 KB)
ðŸ“„ BrowserCache_Environment_Apache.php(3.38 KB)
ðŸ“„ BrowserCache_Environment_LiteSpeed.php(8.41 KB)
ðŸ“„ BrowserCache_Environment_Nginx.php(22.25 KB)
ðŸ“„ BrowserCache_Page.php(3.28 KB)
ðŸ“„ BrowserCache_Page_View_QuickReference.php(2.58 KB)
ðŸ“„ BrowserCache_Page_View_SectionSecurity.php(61.6 KB)
ðŸ“„ BrowserCache_Plugin.php(15.11 KB)
ðŸ“„ BrowserCache_Plugin_Admin.php(1.33 KB)
ðŸ“„ Cache.php(4.52 KB)
ðŸ“„ CacheFlush.php(7.88 KB)
ðŸ“„ CacheFlush_Locally.php(12.6 KB)
ðŸ“„ CacheGroups_Plugin_Admin.php(7.98 KB)
ðŸ“„ CacheGroups_Plugin_Admin_View.js(23 KB)
ðŸ“„ CacheGroups_Plugin_Admin_View.php(15.17 KB)
ðŸ“„ Cache_Apc.php(7.75 KB)
ðŸ“„ Cache_Apcu.php(7.77 KB)
ðŸ“„ Cache_Base.php(6.49 KB)
ðŸ“„ Cache_Eaccelerator.php(7.58 KB)
ðŸ“„ Cache_File.php(21.25 KB)
ðŸ“„ Cache_File_Cleaner.php(2.69 KB)
ðŸ“„ Cache_File_Cleaner_Generic.php(4.05 KB)
ðŸ“„ Cache_File_Cleaner_Generic_HardDelete.php(1.05 KB)
ðŸ“„ Cache_File_Generic.php(12.54 KB)
ðŸ“„ Cache_Memcache.php(14.32 KB)
ðŸ“„ Cache_Memcached.php(18.13 KB)
ðŸ“„ Cache_Memcached_Stats.php(3.52 KB)
ðŸ“„ Cache_Nginx_Memcached.php(13.55 KB)
ðŸ“„ Cache_Redis.php(13.31 KB)
ðŸ“„ Cache_Wincache.php(12.72 KB)
ðŸ“„ Cache_Xcache.php(11.55 KB)
ðŸ“„ CdnEngine.php(2.54 KB)
ðŸ“„ CdnEngine_Azure.php(12.65 KB)
ðŸ“„ CdnEngine_Azure_MI.php(12.28 KB)
ðŸ“„ CdnEngine_Azure_MI_Utility.php(18.19 KB)
ðŸ“„ CdnEngine_Base.php(16.37 KB)
ðŸ“„ CdnEngine_CloudFront.php(12.38 KB)
ðŸ“„ CdnEngine_Ftp.php(21.08 KB)
ðŸ“„ CdnEngine_GoogleDrive.php(24.14 KB)
ðŸ“„ CdnEngine_Mirror.php(2.46 KB)
ðŸ“„ CdnEngine_Mirror_Akamai.php(3.52 KB)
ðŸ“„ CdnEngine_Mirror_Att.php(293 B)
ðŸ“„ CdnEngine_Mirror_BunnyCdn.php(4.3 KB)
ðŸ“„ CdnEngine_Mirror_CloudFront.php(10.48 KB)
ðŸ“„ CdnEngine_Mirror_Cotendo.php(3.72 KB)
ðŸ“„ CdnEngine_Mirror_Edgecast.php(4.46 KB)
ðŸ“„ CdnEngine_Mirror_RackSpaceCdn.php(6.57 KB)
ðŸ“„ CdnEngine_RackSpaceCloudFiles.php(12.01 KB)
ðŸ“„ CdnEngine_S3.php(17.55 KB)
ðŸ“„ CdnEngine_S3_Compatible.php(10.36 KB)
ðŸ“„ Cdn_AdminActions.php(16.81 KB)
ðŸ“„ Cdn_AdminNotes.php(13.71 KB)
ðŸ“„ Cdn_BunnyCdn_Api.php(15.67 KB)
ðŸ“„ Cdn_BunnyCdn_Page.php(7.4 KB)
ðŸ“„ Cdn_BunnyCdn_Page_View.js(13.14 KB)
ðŸ“„ Cdn_BunnyCdn_Page_View.php(3.6 KB)
ðŸ“„ Cdn_BunnyCdn_Page_View_Purge_Urls.php(2.06 KB)
ðŸ“„ Cdn_BunnyCdn_Popup.php(10.83 KB)
ðŸ“„ Cdn_BunnyCdn_Popup_View_Configured.php(864 B)
ðŸ“„ Cdn_BunnyCdn_Popup_View_Deauthorize.php(2.15 KB)
ðŸ“„ Cdn_BunnyCdn_Popup_View_Deauthorized.php(1.54 KB)
ðŸ“„ Cdn_BunnyCdn_Popup_View_Intro.php(1.83 KB)
ðŸ“„ Cdn_BunnyCdn_Popup_View_Pull_Zones.php(5.16 KB)
ðŸ“„ Cdn_BunnyCdn_Widget.php(2.25 KB)
ðŸ“„ Cdn_BunnyCdn_Widget_View.css(1.26 KB)
ðŸ“„ Cdn_BunnyCdn_Widget_View_Authorized.php(1.9 KB)
ðŸ“„ Cdn_BunnyCdn_Widget_View_Unauthorized.php(6.1 KB)
ðŸ“„ Cdn_CacheFlush.php(2.64 KB)
ðŸ“„ Cdn_ConfigLabels.php(5.43 KB)
ðŸ“„ Cdn_Core.php(32.83 KB)
ðŸ“„ Cdn_Core_Admin.php(27.08 KB)
ðŸ“„ Cdn_Environment.php(19.29 KB)
ðŸ“„ Cdn_Environment_LiteSpeed.php(5.19 KB)
ðŸ“„ Cdn_Environment_Nginx.php(3.92 KB)
ðŸ“„ Cdn_GeneralPage_View.php(4.05 KB)
ðŸ“„ Cdn_GoogleDrive_AdminActions.php(3.53 KB)
ðŸ“„ Cdn_GoogleDrive_Page.php(2.03 KB)
ðŸ“„ Cdn_GoogleDrive_Page_View.js(6.25 KB)
ðŸ“„ Cdn_GoogleDrive_Page_View.php(1.36 KB)
ðŸ“„ Cdn_GoogleDrive_Popup_AuthReturn.php(1.61 KB)
ðŸ“„ Cdn_GoogleDrive_Popup_AuthReturn_View.php(1.66 KB)
ðŸ“„ Cdn_Page.php(3.5 KB)
ðŸ“„ Cdn_Page_View_Fsd_HeaderActions.php(760 B)
ðŸ“„ Cdn_Plugin.php(43.77 KB)
ðŸ“„ Cdn_Plugin_Admin.php(7.3 KB)
ðŸ“„ Cdn_RackSpaceCdn_AdminActions.php(1.28 KB)
ðŸ“„ Cdn_RackSpaceCdn_Page.php(2.05 KB)
ðŸ“„ Cdn_RackSpaceCdn_Page_View.js(10.06 KB)
ðŸ“„ Cdn_RackSpaceCdn_Page_View.php(5.22 KB)
ðŸ“„ Cdn_RackSpaceCdn_Popup.php(21.49 KB)
ðŸ“„ Cdn_RackSpaceCdn_Popup_View_ConfigureDomains.php(1.87 KB)
ðŸ“„ Cdn_RackSpaceCdn_Popup_View_Intro.php(1.71 KB)
ðŸ“„ Cdn_RackSpaceCdn_Popup_View_Regions.php(1.76 KB)
ðŸ“„ Cdn_RackSpaceCdn_Popup_View_Service_Actualize.php(2.04 KB)
ðŸ“„ Cdn_RackSpaceCdn_Popup_View_Service_Create.php(4.41 KB)
ðŸ“„ Cdn_RackSpaceCdn_Popup_View_Service_Created.php(2.48 KB)
ðŸ“„ Cdn_RackSpaceCdn_Popup_View_Services.php(1.99 KB)
ðŸ“„ Cdn_RackSpaceCloudFiles_Page.php(1.67 KB)
ðŸ“„ Cdn_RackSpaceCloudFiles_Page_View.js(6.44 KB)
ðŸ“„ Cdn_RackSpaceCloudFiles_Page_View.php(4.91 KB)
ðŸ“„ Cdn_RackSpaceCloudFiles_Popup.php(7.62 KB)
ðŸ“„ Cdn_RackSpaceCloudFiles_Popup_View_Containers.php(2.06 KB)
ðŸ“„ Cdn_RackSpaceCloudFiles_Popup_View_Intro.php(1.71 KB)
ðŸ“„ Cdn_RackSpaceCloudFiles_Popup_View_Regions.php(1.78 KB)
ðŸ“„ Cdn_RackSpace_Api_CaCert-example.pem(195.74 KB)
ðŸ“„ Cdn_RackSpace_Api_Cdn.php(10.72 KB)
ðŸ“„ Cdn_RackSpace_Api_CloudFiles.php(8.37 KB)
ðŸ“„ Cdn_RackSpace_Api_CloudFilesCdn.php(8.48 KB)
ðŸ“„ Cdn_RackSpace_Api_Tokens.php(6.78 KB)
ðŸ“„ Cdn_Util.php(6.73 KB)
ðŸ“„ Cdnfsd_BunnyCdn_Engine.php(2.03 KB)
ðŸ“„ Cdnfsd_BunnyCdn_Page.php(683 B)
ðŸ“„ Cdnfsd_BunnyCdn_Page_View.js(9.7 KB)
ðŸ“„ Cdnfsd_BunnyCdn_Page_View.php(3.72 KB)
ðŸ“„ Cdnfsd_BunnyCdn_Popup.php(10.39 KB)
ðŸ“„ Cdnfsd_BunnyCdn_Popup_View_Configured.php(1.3 KB)
ðŸ“„ Cdnfsd_BunnyCdn_Popup_View_Deauthorize.php(2.17 KB)
ðŸ“„ Cdnfsd_BunnyCdn_Popup_View_Deauthorized.php(1.56 KB)
ðŸ“„ Cdnfsd_BunnyCdn_Popup_View_Intro.php(1.85 KB)
ðŸ“„ Cdnfsd_BunnyCdn_Popup_View_Pull_Zones.php(5.57 KB)
ðŸ“„ Cdnfsd_CacheFlush.php(8.25 KB)
ðŸ“„ Cdnfsd_CloudFront_Engine.php(3.38 KB)
ðŸ“„ Cdnfsd_CloudFront_Page.php(741 B)
ðŸ“„ Cdnfsd_CloudFront_Page_View.js(8.51 KB)
ðŸ“„ Cdnfsd_CloudFront_Page_View.php(2.04 KB)
ðŸ“„ Cdnfsd_CloudFront_Popup.php(15.46 KB)
ðŸ“„ Cdnfsd_CloudFront_Popup_View_Distribution.php(3.34 KB)
ðŸ“„ Cdnfsd_CloudFront_Popup_View_Distributions.php(1.72 KB)
ðŸ“„ Cdnfsd_CloudFront_Popup_View_Intro.php(1.65 KB)
ðŸ“„ Cdnfsd_CloudFront_Popup_View_Success.php(976 B)
ðŸ“„ Cdnfsd_Core.php(1.96 KB)
ðŸ“„ Cdnfsd_GeneralPage_View.php(4.02 KB)
ðŸ“„ Cdnfsd_Plugin.php(1.98 KB)
ðŸ“„ Cdnfsd_Plugin_Admin.php(2.63 KB)
ðŸ“„ Cdnfsd_TransparentCDN_Engine.php(7.97 KB)
ðŸ“„ Cdnfsd_TransparentCDN_Page.php(1.36 KB)
ðŸ“„ Cdnfsd_TransparentCDN_Page_View.js(7.13 KB)
ðŸ“„ Cdnfsd_TransparentCDN_Page_View.php(2.33 KB)
ðŸ“„ Cdnfsd_Util.php(834 B)
ðŸ“„ Cli.php(17.33 KB)
ðŸ“„ Config.php(16.8 KB)
ðŸ“„ ConfigCache.php(4.67 KB)
ðŸ“„ ConfigCompiler.php(17.87 KB)
ðŸ“„ ConfigDbStorage.php(15.87 KB)
ðŸ“„ ConfigKeys.php(69.92 KB)
ðŸ“„ ConfigSettingsTabs.php(1.18 KB)
ðŸ“„ ConfigSettingsTabsKeys.php(19.62 KB)
ðŸ“„ ConfigState.php(6.08 KB)
ðŸ“„ ConfigStateNote.php(1.94 KB)
ðŸ“„ ConfigUtil.php(3.45 KB)
ðŸ“„ DbCache_ConfigLabels.php(1.22 KB)
ðŸ“„ DbCache_Core.php(2.05 KB)
ðŸ“„ DbCache_Environment.php(6.41 KB)
ðŸ“„ DbCache_Page.php(1.1 KB)
ðŸ“„ DbCache_Plugin.php(9.62 KB)
ðŸ“„ DbCache_Plugin_Admin.php(5.08 KB)
ðŸ“„ DbCache_Wpdb.php(1.63 KB)
ðŸ“„ DbCache_WpdbBase.php(346 B)
ðŸ“„ DbCache_WpdbInjection.php(7.15 KB)
ðŸ“„ DbCache_WpdbInjection_QueryCaching.php(26.05 KB)
ðŸ“„ DbCache_WpdbLegacy.php(22.42 KB)
ðŸ“„ DbCache_WpdbNew.php(22.24 KB)
ðŸ“„ Dispatcher.php(8.21 KB)
ðŸ“„ Enterprise_CacheFlush_MakeSnsEvent.php(7.47 KB)
ðŸ“„ Enterprise_Dbcache_WpdbInjection_Cluster.php(30.32 KB)
ðŸ“„ Enterprise_SnsBase.php(3.07 KB)
ðŸ“„ Enterprise_SnsServer.php(5.17 KB)
ðŸ“„ Extension_AlwaysCached_AdminActions.php(2.36 KB)
ðŸ“„ Extension_AlwaysCached_Environment.php(2.87 KB)
ðŸ“„ Extension_AlwaysCached_Page.php(4 KB)
ðŸ“„ Extension_AlwaysCached_Page_Queue_View.php(3.14 KB)
ðŸ“„ Extension_AlwaysCached_Page_View.js(13.04 KB)
ðŸ“„ Extension_AlwaysCached_Page_View.php(2.51 KB)
ðŸ“„ Extension_AlwaysCached_Page_View_BoxCron.php(2.92 KB)
ðŸ“„ Extension_AlwaysCached_Page_View_BoxFlushAll.php(3.28 KB)
ðŸ“„ Extension_AlwaysCached_Page_View_BoxQueue.php(4.35 KB)
ðŸ“„ Extension_AlwaysCached_Page_View_Exclusions.php(1.11 KB)
ðŸ“„ Extension_AlwaysCached_Plugin.php(12.1 KB)
ðŸ“„ Extension_AlwaysCached_Plugin_Admin.php(3.06 KB)
ðŸ“„ Extension_AlwaysCached_Queue.php(10.22 KB)
ðŸ“„ Extension_AlwaysCached_Worker.php(2.93 KB)
ðŸ“„ Extension_Amp_Page_View.php(1.26 KB)
ðŸ“„ Extension_Amp_Plugin.php(11.1 KB)
ðŸ“„ Extension_Amp_Plugin_Admin.php(2.19 KB)
ðŸ“„ Extension_CloudFlare_AdminActions.php(1.57 KB)
ðŸ“„ Extension_CloudFlare_Api.php(12.19 KB)
ðŸ“„ Extension_CloudFlare_Cdn_Page_View.php(625 B)
ðŸ“„ Extension_CloudFlare_GeneralPage_View.php(3.05 KB)
ðŸ“„ Extension_CloudFlare_Page.php(4.32 KB)
ðŸ“„ Extension_CloudFlare_Page_View.js(6.93 KB)
ðŸ“„ Extension_CloudFlare_Page_View.php(27.38 KB)
ðŸ“„ Extension_CloudFlare_Plugin.php(15.19 KB)
ðŸ“„ Extension_CloudFlare_Plugin_Admin.php(14.13 KB)
ðŸ“„ Extension_CloudFlare_Popup.php(4.21 KB)
ðŸ“„ Extension_CloudFlare_Popup_View_Intro.php(1.75 KB)
ðŸ“„ Extension_CloudFlare_Popup_View_Zones.php(2.09 KB)
ðŸ“„ Extension_CloudFlare_SettingsForUi.php(4.84 KB)
ðŸ“„ Extension_CloudFlare_View_Dashboard.js(6.49 KB)
ðŸ“„ Extension_CloudFlare_Widget.php(4.63 KB)
ðŸ“„ Extension_CloudFlare_Widget_Logo.png(6.96 KB)
ðŸ“„ Extension_CloudFlare_Widget_View.css(683 B)
ðŸ“„ Extension_CloudFlare_Widget_View.php(1.65 KB)
ðŸ“„ Extension_FragmentCache_Api.php(7.01 KB)
ðŸ“„ Extension_FragmentCache_Core.php(3.38 KB)
ðŸ“„ Extension_FragmentCache_Environment.php(1.41 KB)
ðŸ“„ Extension_FragmentCache_GeneralPage.php(1.27 KB)
ðŸ“„ Extension_FragmentCache_GeneralPage_View.php(2.47 KB)
ðŸ“„ Extension_FragmentCache_Page.php(697 B)
ðŸ“„ Extension_FragmentCache_Page_View.php(5.25 KB)
ðŸ“„ Extension_FragmentCache_Plugin.php(8.21 KB)
ðŸ“„ Extension_FragmentCache_Plugin_Admin.php(8.91 KB)
ðŸ“„ Extension_FragmentCache_WpObjectCache.php(16.92 KB)
ðŸ“„ Extension_Genesis_Page.php(409 B)
ðŸ“„ Extension_Genesis_Page_View.php(11.11 KB)
ðŸ“„ Extension_Genesis_Plugin.php(14.46 KB)
ðŸ“„ Extension_Genesis_Plugin_Admin.php(5.45 KB)
ðŸ“„ Extension_ImageService_Api.php(11.99 KB)
ðŸ“„ Extension_ImageService_Cron.php(6.49 KB)
ðŸ“„ Extension_ImageService_Environment.php(4.6 KB)
ðŸ“„ Extension_ImageService_Page_View.php(8.41 KB)
ðŸ“„ Extension_ImageService_Plugin.php(1.44 KB)
ðŸ“„ Extension_ImageService_Plugin_Admin.css(2.34 KB)
ðŸ“„ Extension_ImageService_Plugin_Admin.js(23.15 KB)
ðŸ“„ Extension_ImageService_Plugin_Admin.php(42.7 KB)
ðŸ“„ Extension_ImageService_Widget.js(11.95 KB)
ðŸ“„ Extension_ImageService_Widget.php(3.34 KB)
ðŸ“„ Extension_ImageService_Widget_View.php(1.59 KB)
ðŸ“„ Extension_NewRelic_AdminActions.php(1.11 KB)
ðŸ“„ Extension_NewRelic_AdminNotes.php(2.11 KB)
ðŸ“„ Extension_NewRelic_Api.php(4.03 KB)
ðŸ“„ Extension_NewRelic_Core.php(1.33 KB)
ðŸ“„ Extension_NewRelic_GeneralPage.php(1.53 KB)
ðŸ“„ Extension_NewRelic_GeneralPage_View.php(2.84 KB)
ðŸ“„ Extension_NewRelic_Page.php(1.35 KB)
ðŸ“„ Extension_NewRelic_Page_View_Apm.php(12.87 KB)
ðŸ“„ Extension_NewRelic_Plugin.php(7.09 KB)
ðŸ“„ Extension_NewRelic_Plugin_Admin.php(8.08 KB)
ðŸ“„ Extension_NewRelic_Popup.php(3.96 KB)
ðŸ“„ Extension_NewRelic_Popup_View.js(7.5 KB)
ðŸ“„ Extension_NewRelic_Popup_View_Intro.php(1.37 KB)
ðŸ“„ Extension_NewRelic_Popup_View_ListApplications.php(1.93 KB)
ðŸ“„ Extension_NewRelic_Service.php(21.65 KB)
ðŸ“„ Extension_NewRelic_Widget.php(10.48 KB)
ðŸ“„ Extension_NewRelic_Widget_View.css(1.37 KB)
ðŸ“„ Extension_NewRelic_Widget_View.js(8.2 KB)
ðŸ“„ Extension_NewRelic_Widget_View_Apm.php(2.91 KB)
ðŸ“„ Extension_NewRelic_Widget_View_Browser.php(436 B)
ðŸ“„ Extension_NewRelic_Widget_View_NotConfigured.php(233 B)
ðŸ“„ Extension_Swarmify_AdminActions.php(793 B)
ðŸ“„ Extension_Swarmify_Core.php(748 B)
ðŸ“„ Extension_Swarmify_Page.php(708 B)
ðŸ“„ Extension_Swarmify_Page_View.php(2.78 KB)
ðŸ“„ Extension_Swarmify_Plugin.php(4.63 KB)
ðŸ“„ Extension_Swarmify_Plugin_Admin.php(2.63 KB)
ðŸ“„ Extension_WordPressSeo_Plugin.php(1.39 KB)
ðŸ“„ Extension_WordPressSeo_Plugin_Admin.php(5.25 KB)
ðŸ“„ Extension_Wpml_Plugin.php(1.34 KB)
ðŸ“„ Extension_Wpml_Plugin_Admin.php(7.45 KB)
ðŸ“„ Extensions_AdminActions.php(943 B)
ðŸ“„ Extensions_Page.php(4.06 KB)
ðŸ“„ Extensions_Plugin_Admin.php(9.66 KB)
ðŸ“„ Extensions_Util.php(4.43 KB)
ðŸ“„ FeatureShowcase_Plugin_Admin.php(29.1 KB)
ðŸ“„ FeatureShowcase_Plugin_Admin_View.php(2.82 KB)
ðŸ“„ Generic_AdminActions_Config.php(6.61 KB)
ðŸ“„ Generic_AdminActions_Default.php(21.84 KB)
ðŸ“„ Generic_AdminActions_Flush.php(10.57 KB)
ðŸ“„ Generic_AdminActions_Test.php(6.15 KB)
ðŸ“„ Generic_AdminNotes.php(13.88 KB)
ðŸ“„ Generic_ConfigLabels.php(2.33 KB)
ðŸ“„ Generic_Environment.php(6.67 KB)
ðŸ“„ Generic_Faq.php(2.27 KB)
ðŸ“„ Generic_GeneralPage_View_ShowEdge.js(6.08 KB)
ðŸ“„ Generic_Page_About.php(503 B)
ðŸ“„ Generic_Page_Dashboard.php(1.66 KB)
ðŸ“„ Generic_Page_Dashboard_View.css(6.34 KB)
ðŸ“„ Generic_Page_General.php(2.88 KB)
ðŸ“„ Generic_Page_Install.php(913 B)
ðŸ“„ Generic_Page_PurgeLog.php(2.81 KB)
ðŸ“„ Generic_Page_PurgeLog_View.php(2.97 KB)
ðŸ“„ Generic_Plugin.php(23.04 KB)
ðŸ“„ Generic_Plugin_Admin.php(48.87 KB)
ðŸ“„ Generic_Plugin_AdminCompatibility.php(3.98 KB)
ðŸ“„ Generic_Plugin_AdminNotices.css(188 B)
ðŸ“„ Generic_Plugin_AdminNotices.js(7.43 KB)
ðŸ“„ Generic_Plugin_AdminNotices.php(12.12 KB)
ðŸ“„ Generic_Plugin_AdminRowActions.php(2.43 KB)
ðŸ“„ Generic_Plugin_Admin_View_Faq.php(1007 B)
ðŸ“„ Generic_Plugin_Survey.php(4.8 KB)
ðŸ“„ Generic_WidgetAccount.php(1.05 KB)
ðŸ“„ Generic_WidgetAccount_View.php(2.1 KB)
ðŸ“„ Generic_WidgetBoldGrid.php(1.97 KB)
ðŸ“„ Generic_WidgetBoldGrid_AdminActions.php(912 B)
ðŸ“„ Generic_WidgetBoldGrid_Logo.svg(4.28 KB)
ðŸ“„ Generic_WidgetBoldGrid_View.js(6.39 KB)
ðŸ“„ Generic_WidgetBoldGrid_View.php(872 B)
ðŸ“„ Generic_WidgetPartners.php(1.08 KB)
ðŸ“„ Generic_WidgetPartners_View.php(1.66 KB)
ðŸ“„ Generic_WidgetServices.php(1.66 KB)
ðŸ“„ Generic_WidgetServices_View.php(501 B)
ðŸ“„ Generic_WidgetSettings.php(1.05 KB)
ðŸ“„ Generic_WidgetSettings_View.php(3.37 KB)
ðŸ“„ Generic_WidgetSpreadTheWord.js(6.64 KB)
ðŸ“„ Generic_WidgetSpreadTheWord_Plugin.php(2.03 KB)
ðŸ“„ Generic_WidgetSpreadTheWord_View.php(579 B)
ðŸ“„ Generic_WidgetStats.js(9.08 KB)
ðŸ“„ Generic_WidgetStats.php(4.84 KB)
ðŸ“„ LICENSE(17.67 KB)
ðŸ“„ Licensing_AdminActions.php(4.22 KB)
ðŸ“„ Licensing_Core.php(6.28 KB)
ðŸ“„ Licensing_Plugin_Admin.php(16.65 KB)
ðŸ“„ Minify_AutoCss.php(8.83 KB)
ðŸ“„ Minify_AutoJs.php(9.68 KB)
ðŸ“„ Minify_ConfigLabels.php(8.66 KB)
ðŸ“„ Minify_ContentMinifier.php(10.24 KB)
ðŸ“„ Minify_Core.php(7.42 KB)
ðŸ“„ Minify_Environment.php(26.91 KB)
ðŸ“„ Minify_Environment_LiteSpeed.php(977 B)
ðŸ“„ Minify_Extract.php(2.8 KB)
ðŸ“„ Minify_GeneralPage_View_ShowHelp.js(6.9 KB)
ðŸ“„ Minify_GeneralPage_View_ShowHelpForce.js(5.83 KB)
ðŸ“„ Minify_HelpPopup_View.php(5.01 KB)
ðŸ“„ Minify_MinifiedFileRequestHandler.php(32.87 KB)
ðŸ“„ Minify_Page.php(18.45 KB)
ðŸ“„ Minify_Plugin.php(41.75 KB)
ðŸ“„ Minify_Plugin_Admin.php(11.97 KB)
ðŸ“„ Mobile_Base.php(6.85 KB)
ðŸ“„ Mobile_Redirect.php(1.85 KB)
ðŸ“„ Mobile_Referrer.php(2.4 KB)
ðŸ“„ Mobile_UserAgent.php(971 B)
ðŸ“„ ModuleStatus.php(4.37 KB)
ðŸ“„ ObjectCache_ConfigLabels.php(1.25 KB)
ðŸ“„ ObjectCache_DiskPopup.js(8.18 KB)
ðŸ“„ ObjectCache_DiskPopup_View.php(1.77 KB)
ðŸ“„ ObjectCache_Environment.php(6.79 KB)
ðŸ“„ ObjectCache_Page.php(560 B)
ðŸ“„ ObjectCache_Page_View_PurgeLog.php(1.01 KB)
ðŸ“„ ObjectCache_Plugin.php(6.54 KB)
ðŸ“„ ObjectCache_Plugin_Admin.php(6.97 KB)
ðŸ“„ ObjectCache_WpObjectCache.php(10.17 KB)
ðŸ“„ ObjectCache_WpObjectCache_Regular.php(34.11 KB)
ðŸ“„ PageSpeed_Api.php(12.16 KB)
ðŸ“„ PageSpeed_Data.php(37.19 KB)
ðŸ“„ PageSpeed_Instructions.php(43.29 KB)
ðŸ“„ PageSpeed_Page.php(8.76 KB)
ðŸ“„ PageSpeed_Page_View.css(6.21 KB)
ðŸ“„ PageSpeed_Page_View.js(15.26 KB)
ðŸ“„ PageSpeed_Page_View.php(2.08 KB)
ðŸ“„ PageSpeed_Page_View_FromAPI.php(7.65 KB)
ðŸ“„ PageSpeed_Widget.php(7.03 KB)
ðŸ“„ PageSpeed_Widget_View.css(2.62 KB)
ðŸ“„ PageSpeed_Widget_View.js(7.86 KB)
ðŸ“„ PageSpeed_Widget_View.php(1.09 KB)
ðŸ“„ PageSpeed_Widget_View_FromApi.php(3.71 KB)
ðŸ“„ PgCache_ConfigLabels.php(5.82 KB)
ðŸ“„ PgCache_ContentGrabber.php(70.95 KB)
ðŸ“„ PgCache_Environment.php(51.72 KB)
ðŸ“„ PgCache_Flush.php(16.32 KB)
ðŸ“„ PgCache_Page.php(1.6 KB)
ðŸ“„ PgCache_Page_View.js(6.32 KB)
ðŸ“„ PgCache_Plugin.php(14.22 KB)
ðŸ“„ PgCache_Plugin_Admin.php(14.49 KB)
ðŸ“„ PgCache_QsExempts.php(1.88 KB)
ðŸ“„ Root_AdminActions.php(3.05 KB)
ðŸ“„ Root_AdminActivation.php(6.52 KB)
ðŸ“„ Root_AdminMenu.php(8.37 KB)
ðŸ“„ Root_Environment.php(7.81 KB)
ðŸ“„ Root_Loader.php(6.94 KB)
ðŸ“„ SetupGuide_Plugin_Admin.php(48.8 KB)
ðŸ“„ Support_AdminActions.php(6.14 KB)
ðŸ“„ Support_Page.php(3.08 KB)
ðŸ“„ Support_Page_View_DoneContent.php(353 B)
ðŸ“„ Support_Page_View_PageContent.php(1.39 KB)
ðŸ“„ SystemOpCache_AdminActions.php(1.18 KB)
ðŸ“„ SystemOpCache_Core.php(2.48 KB)
ðŸ“„ SystemOpCache_GeneralPage_View.php(2.27 KB)
ðŸ“„ SystemOpCache_Plugin_Admin.php(3.3 KB)
ðŸ“„ UsageStatistics_AdminActions.php(1.14 KB)
ðŸ“„ UsageStatistics_Core.php(3.39 KB)
ðŸ“„ UsageStatistics_GeneralPage.php(1.6 KB)
ðŸ“„ UsageStatistics_GeneralPage_View.php(6.18 KB)
ðŸ“„ UsageStatistics_Page.php(8.4 KB)
ðŸ“„ UsageStatistics_Page_DbRequests_View.php(1.79 KB)
ðŸ“„ UsageStatistics_Page_ObjectCacheLog_View.php(1.97 KB)
ðŸ“„ UsageStatistics_Page_PageCacheRequests_View.php(1.86 KB)
ðŸ“„ UsageStatistics_Page_View.css(1.68 KB)
ðŸ“„ UsageStatistics_Page_View.js(23.2 KB)
ðŸ“„ UsageStatistics_Page_View.php(17.13 KB)
ðŸ“„ UsageStatistics_Page_View_Ad.php(688 B)
ðŸ“„ UsageStatistics_Page_View_Disabled.php(610 B)
ðŸ“„ UsageStatistics_Page_View_Free.php(635 B)
ðŸ“„ UsageStatistics_Page_View_NoDebugMode.php(615 B)
ðŸ“„ UsageStatistics_Plugin.php(2.89 KB)
ðŸ“„ UsageStatistics_Plugin_Admin.php(5.65 KB)
ðŸ“„ UsageStatistics_Source_AccessLog.php(17.47 KB)
ðŸ“„ UsageStatistics_Source_DbQueriesLog.php(6.04 KB)
ðŸ“„ UsageStatistics_Source_ObjectCacheLog.php(5.57 KB)
ðŸ“„ UsageStatistics_Source_PageCacheLog.php(6.11 KB)
ðŸ“„ UsageStatistics_Source_Wpdb.php(3.49 KB)
ðŸ“„ UsageStatistics_Sources.php(5.41 KB)
ðŸ“„ UsageStatistics_Sources_Apc.php(3.39 KB)
ðŸ“„ UsageStatistics_Sources_Memcached.php(4.58 KB)
ðŸ“„ UsageStatistics_Sources_Redis.php(4.69 KB)
ðŸ“„ UsageStatistics_StorageReader.php(2.81 KB)
ðŸ“„ UsageStatistics_StorageWriter.php(14.38 KB)
ðŸ“„ UserExperience_DeferScripts_Extension.php(7.04 KB)
ðŸ“„ UserExperience_DeferScripts_Mutator.php(2.78 KB)
ðŸ“„ UserExperience_DeferScripts_Page_View.php(3.91 KB)
ðŸ“„ UserExperience_DeferScripts_Script.js(6.14 KB)
ðŸ“„ UserExperience_Emoji_Extension.php(3.04 KB)
ðŸ“„ UserExperience_GeneralPage.php(1.72 KB)
ðŸ“„ UserExperience_GeneralPage_View.php(8.21 KB)
ðŸ“„ UserExperience_LazyLoad_GoogleMaps_GoogleMapsEasy.php(3.89 KB)
ðŸ“„ UserExperience_LazyLoad_GoogleMaps_WPGoogleMapPlugin.php(2.14 KB)
ðŸ“„ UserExperience_LazyLoad_GoogleMaps_WPGoogleMaps.php(3.94 KB)
ðŸ“„ UserExperience_LazyLoad_Mutator.php(9.18 KB)
ðŸ“„ UserExperience_LazyLoad_Mutator_Picture.php(2.52 KB)
ðŸ“„ UserExperience_LazyLoad_Mutator_Unmutable.php(2.88 KB)
ðŸ“„ UserExperience_LazyLoad_Page_View.php(6.46 KB)
ðŸ“„ UserExperience_LazyLoad_Plugin.php(9.17 KB)
ðŸ“„ UserExperience_OEmbed_Extension.php(795 B)
ðŸ“„ UserExperience_Page.php(527 B)
ðŸ“„ UserExperience_Page_View.php(695 B)
ðŸ“„ UserExperience_Plugin_Admin.php(3.49 KB)
ðŸ“„ UserExperience_Plugin_Jquery.php(1.4 KB)
ðŸ“„ UserExperience_Preload_Requests_Extension.php(6.15 KB)
ðŸ“„ UserExperience_Preload_Requests_Page_View.php(8.18 KB)
ðŸ“„ UserExperience_Remove_CssJs_Extension.php(6.79 KB)
ðŸ“„ UserExperience_Remove_CssJs_Mutator.php(4.45 KB)
ðŸ“„ UserExperience_Remove_CssJs_Page_View.js(15.98 KB)
ðŸ“„ UserExperience_Remove_CssJs_Page_View.php(14.59 KB)
ðŸ“„ Util_Activation.php(9.89 KB)
ðŸ“„ Util_Admin.php(25.03 KB)
ðŸ“„ Util_AttachToActions.php(7.65 KB)
ðŸ“„ Util_Bus.php(832 B)
ðŸ“„ Util_ConfigLabel.php(1.57 KB)
ðŸ“„ Util_Content.php(3.03 KB)
ðŸ“„ Util_Debug.php(6.38 KB)
ðŸ“„ Util_DebugPurgeLog_Reader.php(3.36 KB)
ðŸ“„ Util_Environment.php(42.46 KB)
ðŸ“„ Util_Environment_Exception.php(719 B)
ðŸ“„ Util_Environment_Exceptions.php(1.42 KB)
ðŸ“„ Util_File.php(13.11 KB)
ðŸ“„ Util_Http.php(5.87 KB)
ðŸ“„ Util_Installed.php(4.24 KB)
ðŸ“„ Util_Mime.php(2.9 KB)
ðŸ“„ Util_PageSpeed.php(33.92 KB)
ðŸ“„ Util_PageUrls.php(32.57 KB)
ðŸ“„ Util_Request.php(3.52 KB)
ðŸ“„ Util_Rule.php(13.83 KB)
ðŸ“„ Util_Theme.php(3.87 KB)
ðŸ“„ Util_Ui.php(83.11 KB)
ðŸ“„ Util_UsageStatistics.php(13.6 KB)
ðŸ“„ Util_Widget.php(7.88 KB)
ðŸ“„ Util_WpFile.php(16.48 KB)
ðŸ“„ Util_WpFile_FilesystemChmodException.php(1.66 KB)
ðŸ“„ Util_WpFile_FilesystemCopyException.php(1.79 KB)
ðŸ“„ Util_WpFile_FilesystemMkdirException.php(1.14 KB)
ðŸ“„ Util_WpFile_FilesystemModifyException.php(2.35 KB)
ðŸ“„ Util_WpFile_FilesystemOperationException.php(1.29 KB)
ðŸ“„ Util_WpFile_FilesystemRmException.php(1.14 KB)
ðŸ“„ Util_WpFile_FilesystemRmdirException.php(1.19 KB)
ðŸ“„ Util_WpFile_FilesystemWriteException.php(1.57 KB)
ðŸ“„ Util_WpmuBlogmap.php(8.06 KB)
ðŸ“„ Varnish_Flush.php(18.57 KB)
ðŸ“„ Varnish_Plugin.php(3.2 KB)
ðŸ“ extension-example
ðŸ“ inc
ðŸ“„ index.html(0 B)
ðŸ“ ini
ðŸ“ languages
ðŸ“ lib
ðŸ“„ press.txt(45.78 KB)
ðŸ“ pub
ðŸ“„ readme.txt(76.49 KB)
ðŸ“ vendor
ðŸ“„ w3-total-cache-api.php(22.29 KB)
ðŸ“„ w3-total-cache-old-php.php(1.25 KB)
ðŸ“„ w3-total-cache.php(2.83 KB)
ðŸ“ wp-content

Editing: Cache_File.php

<?php
/**
 * File: Cache_File.php
 *
 * @package W3TC
 */

namespace W3TC;

/**
 * Class Cache_File
 *
 * phpcs:disable PSR2.Classes.PropertyDeclaration.Underscore
 * phpcs:disable PSR2.Methods.MethodDeclaration.Underscore
 * phpcs:disable WordPress.PHP.NoSilencedErrors.Discouraged
 * phpcs:disable WordPress.PHP.DiscouragedPHPFunctions.serialize_serialize
 * phpcs:disable WordPress.PHP.DiscouragedPHPFunctions.serialize_unserialize
 * phpcs:disable WordPress.WP.AlternativeFunctions
 */
class Cache_File extends Cache_Base {
	/**
	 * Path to cache dir
	 *
	 * @var string
	 */
	protected $_cache_dir = '';

/**
	 * Directory to flush
	 *
	 * @var string
	 */
	protected $_flush_dir = '';
	/**
	 * Exclude files
	 *
	 * @var array
	 */
	protected $_exclude = array();

/**
	 * Flush time limit
	 *
	 * @var int
	 */
	protected $_flush_timelimit = 0;

/**
	 * File locking
	 *
	 * @var boolean
	 */
	protected $_locking = false;

/**
	 * If path should be generated based on wp_hash
	 *
	 * @var bool
	 */
	protected $_use_wp_hash = false;

/**
	 * Constructs the Cache_File instance.
	 *
	 * Initializes the cache file settings using the provided configuration array. Sets up the cache directory, exclusions, flush
	 * time limits, locking behavior, and flushing directory based on the configuration. If specific configurations are not provided,
	 * defaults are determined using environment utilities.
	 *
	 * @param array $config {
	 *     Optional. Configuration options for the cache file.
	 *
	 *     @type string $cache_dir        The directory where cache files are stored.
	 *     @type array  $exclude          List of items to exclude from caching.
	 *     @type int    $flush_timelimit  The time limit for flushing the cache.
	 *     @type bool   $locking          Whether to use locking for cache file access.
	 *     @type string $flush_dir        The directory where cache flush operations occur.
	 *     @type bool   $use_wp_hash     Whether to use WordPress-specific hashing for cache files.
	 * }
	 *
	 * @return void
	 */
	public function __construct( $config = array() ) {
		parent::__construct( $config );
		if ( isset( $config['cache_dir'] ) ) {
			$this->_cache_dir = trim( $config['cache_dir'] );
		} else {
			$this->_cache_dir = Util_Environment::cache_blog_dir( $config['section'], $config['blog_id'] );
		}

$this->_exclude         = isset( $config['exclude'] ) ? (array) $config['exclude'] : array();
		$this->_flush_timelimit = isset( $config['flush_timelimit'] ) ? (int) $config['flush_timelimit'] : 180;
		$this->_locking         = isset( $config['locking'] ) ? (bool) $config['locking'] : false;

if ( isset( $config['flush_dir'] ) ) {
			$this->_flush_dir = $config['flush_dir'];
		} elseif ( $config['blog_id'] <= 0 && ! isset( $config['cache_dir'] ) ) {
			// Clear whole section if we operate on master cache and in a mode when cache_dir not strictly specified.
			$this->_flush_dir = Util_Environment::cache_dir( $config['section'] );
		} else {
			$this->_flush_dir = $this->_cache_dir;
		}

if ( isset( $config['use_wp_hash'] ) && $config['use_wp_hash'] ) {
			$this->_use_wp_hash = true;
		}
	}

/**
	 * Adds a value to the cache if it does not already exist.
	 *
	 * Attempts to retrieve the value using the specified key and group. If the key does not exist in the cache, the value is
	 * added with the specified expiration time.
	 *
	 * @param string $key    The cache key.
	 * @param mixed  $value  The variable to store in the cache.
	 * @param int    $expire Optional. Time in seconds until the cache entry expires. Default is 0 (no expiration).
	 * @param string $group  Optional. The group to which the cache belongs. Default is an empty string.
	 *
	 * @return bool True if the value was added, false if it already exists or on failure.
	 */
	public function add( $key, &$value, $expire = 0, $group = '' ) {
		if ( $this->get( $key, $group ) === false ) {
			return $this->set( $key, $value, $expire, $group );
		}

return false;
	}

/**
	 * Stores the value in the cache with the specified expiration time. The data is serialized and written to a file with a
	 * header indicating the expiration time. File locking can be used for write operations if enabled.
	 *
	 * @param string $key        An MD5 of the DB query.
	 * @param mixed  $content    Data to be cached.
	 * @param int    $expiration Optional. Time in seconds until the cache entry expires. Default is 0 (no expiration).
	 * @param string $group      Optional. The group to which the cache belongs. Default is an empty string.
	 *
	 * @return bool True on success, false on failure.
	 */
	public function set( $key, $content, $expiration = 0, $group = '' ) {
		/**
		 * Get the file pointer of the cache file.
		 * The $key is transformed to a storage key (format "w3tc_INSTANCEID_HOST_BLOGID_dbcache_HASH").
		 * The file path is in the format: CACHEDIR/db/BLOGID/GROUP/[0-9a-f]{3}/[0-9a-f]{3}/[0-9a-f]{32}.
		 */
		$fp = $this->fopen_write( $key, $group, 'wb' );

if ( ! $fp ) {
			return false;
		}

if ( $this->_locking ) {
			@flock( $fp, LOCK_EX );
		}

if ( $expiration <= 0 || $expiration > W3TC_CACHE_FILE_EXPIRE_MAX ) {
			$expiration = W3TC_CACHE_FILE_EXPIRE_MAX;
		}

$expires_at = time() + $expiration;
		@fputs( $fp, pack( 'L', $expires_at ) );
		@fputs( $fp, '<?php exit; ?>' );
		@fputs( $fp, @serialize( $content ) );
		@fclose( $fp );

if ( $this->_locking ) {
			@flock( $fp, LOCK_UN );
		}

return true;
	}

/**
	 * Retrieves a value from the cache along with its old state information.
	 *
	 * Fetches the cached value for the specified key and group. If the cache entry has expired but old data usage is enabled, the
	 * expired data can still be returned while updating its expiration time temporarily.
	 *
	 * @param string $key    The cache key.
	 * @param string $group  Optional. The group to which the cache belongs. Default is an empty string.
	 *
	 * @return array An array containing the unserialized cached data (or null if not found) and a boolean indicating if old data was used.
	 */
	public function get_with_old( $key, $group = '' ) {
		list( $data, $has_old_data ) = $this->_get_with_old_raw( $key, $group );
		if ( ! empty( $data ) ) {
			$data_unserialized = @unserialize( $data );
		} else {
			$data_unserialized = $data;
		}

return array( $data_unserialized, $has_old_data );
	}

/**
	 * Retrieves the raw cached data and expiration status for a key.
	 *
	 * Reads the cached data file to determine the expiration time and fetches the data if it is valid. If the data is expired and
	 * old data usage is enabled, the expiration time is updated temporarily and the expired data is returned.
	 *
	 * @param string $key    The cache key.
	 * @param string $group  Optional. The group to which the cache belongs. Default is an empty string.
	 *
	 * @return array An array containing the raw cached data (or null if not found) and a boolean indicating if old data was used.
	 */
	private function _get_with_old_raw( $key, $group = '' ) {
		$has_old_data = false;

$storage_key = $this->get_item_key( $key );

$path = $this->_cache_dir . DIRECTORY_SEPARATOR . $this->_get_path( $storage_key, $group );
		if ( ! is_readable( $path ) ) {
			return array( null, $has_old_data );
		}

$fp = @fopen( $path, 'rb' );
		if ( ! $fp || 4 > filesize( $path ) ) {
			return array( null, $has_old_data );
		}

if ( $this->_locking ) {
			@flock( $fp, LOCK_SH );
		}

$expires_at = @fread( $fp, 4 );
		$data       = null;

if ( false !== $expires_at ) {
			list( , $expires_at ) = @unpack( 'L', $expires_at );

if ( time() > $expires_at ) {
				if ( $this->_use_expired_data ) {
					// update expiration so other threads will use old data.
					$fp2 = @fopen( $path, 'cb' );

if ( $fp2 ) {
						@fputs( $fp2, pack( 'L', time() + 30 ) );
						@fclose( $fp2 );
					}
					$has_old_data = true;
				}
			} else {
				$data = '';

while ( ! @feof( $fp ) ) {
					$data .= @fread( $fp, 4096 );
				}
				$data = substr( $data, 14 );
			}
		}

if ( $this->_locking ) {
			@flock( $fp, LOCK_UN );
		}

@fclose( $fp );

return array( $data, $has_old_data );
	}

/**
	 * Replaces an existing cache value with a new one.
	 *
	 * Updates the cache entry for the specified key and group if it already exists. If the key does not exist, no action is taken.
	 *
	 * @param string $key    The cache key.
	 * @param mixed  $value  The variable to store in the cache.
	 * @param int    $expire Optional. Time in seconds until the cache entry expires. Default is 0 (no expiration).
	 * @param string $group  Optional. The group to which the cache belongs. Default is an empty string.
	 *
	 * @return bool True if the value was replaced, false otherwise.
	 */
	public function replace( $key, &$value, $expire = 0, $group = '' ) {
		if ( false !== $this->get( $key, $group ) ) {
			return $this->set( $key, $value, $expire, $group );
		}

return false;
	}

/**
	 * Deletes a value from the cache.
	 *
	 * Removes the cache entry for the specified key and group. If "use expired data" is enabled, the expiration time of the cache
	 * entry is set to zero instead of deleting the file.
	 *
	 * @param string $key    The cache key.
	 * @param string $group  Optional. The group to which the cache belongs. Default is an empty string.
	 *
	 * @return bool True if the value was successfully deleted, false otherwise.
	 */
	public function delete( $key, $group = '' ) {
		$storage_key = $this->get_item_key( $key );

$path = $this->_cache_dir . DIRECTORY_SEPARATOR . $this->_get_path( $storage_key, $group );

if ( ! file_exists( $path ) ) {
			return true;
		}

if ( $this->_use_expired_data ) {
			$fp = @fopen( $path, 'cb' );

if ( $fp ) {
				if ( $this->_locking ) {
					@flock( $fp, LOCK_EX );
				}

@fputs( $fp, pack( 'L', 0 ) ); // make it expired.
				@fclose( $fp );

if ( $this->_locking ) {
					@flock( $fp, LOCK_UN );
				}

return true;
			}
		}

return @unlink( $path );
	}

/**
	 * Performs a hard delete of a cache entry.
	 *
	 * Completely removes the cache file for the specified key and group without checking for expiration or other conditions.
	 *
	 * @param string $key    The cache key.
	 * @param string $group  Optional. The group to which the cache belongs. Default is an empty string.
	 *
	 * @return bool True if the file was successfully deleted, false otherwise.
	 */
	public function hard_delete( $key, $group = '' ) {
		$key  = $this->get_item_key( $key );
		$path = $this->_cache_dir . DIRECTORY_SEPARATOR . $this->_get_path( $key, $group );
		return @unlink( $path );
	}

/**
	 * Flushes all cache entries or those belonging to a specific group.
	 *
	 * Deletes all files in the cache directory or a specific group subdirectory. If the group is "sitemaps", the flush is performed
	 * based on a regular expression defined in the configuration.
	 *
	 * @param string $group Optional. The group to flush. Default is an empty string.
	 *
	 * @return bool Always returns true.
	 */
	public function flush( $group = '' ) {
		@set_time_limit( $this->_flush_timelimit );

if ( 'sitemaps' === $group ) {
			$config        = Dispatcher::config();
			$sitemap_regex = $config->get_string( 'pgcache.purge.sitemap_regex' );
			$this->_flush_based_on_regex( $sitemap_regex );
		} else {
			$flush_dir = $group ? $this->_cache_dir . DIRECTORY_SEPARATOR . $group . DIRECTORY_SEPARATOR : $this->_flush_dir;
			Util_File::emptydir( $flush_dir, $this->_exclude );
		}

return true;
	}

/**
	 * Retrieves an extension array for ahead-of-generation cache handling.
	 *
	 * Returns an array containing the current timestamp for cache generation purposes.
	 *
	 * @param string $group The cache group.
	 *
	 * @return array An array with the `before_time` key set to the current timestamp.
	 */
	public function get_ahead_generation_extension( $group ) {
		return array(
			'before_time' => time(),
		);
	}

/**
	 * Flushes a cache group after ahead-of-generation processing.
	 *
	 * Performs any cleanup or flushing required for a cache group after an ahead-of-generation operation.
	 *
	 * @param string $group The cache group.
	 * @param array  $extension {
	 *     An extension array with generation metadata.
	 *
	 *     @type mixed $before_time The time before the generation.
	 * }
	 *
	 * @return void
	 */
	public function flush_group_after_ahead_generation( $group, $extension ) {
		$dir = $this->_flush_dir;
		$extension['before_time'];
	}

/**
	 * Retrieves the last modified time of a cache file.
	 *
	 * Returns the modification time of the cache file for the specified key and group.
	 *
	 * @param string $key    The cache key.
	 * @param string $group  Optional. The group to which the cache belongs. Default is an empty string.
	 *
	 * @return int|false The file modification time as a Unix timestamp, or false if the file does not exist.
	 */
	public function mtime( $key, $group = '' ) {
		$path =
			$this->_cache_dir . DIRECTORY_SEPARATOR . $this->_get_path( $key, $group );

if ( file_exists( $path ) ) {
			return @filemtime( $path );
		}

return false;
	}

/**
	 * Returns subpath for the cache file (format: [0-9a-f]{3}/[0-9a-f]{3}/[0-9a-f]{32}).
	 *
	 * Creates the file path for the cache file based on the key and group. A hash of the key is used to create subdirectories
	 * for organizational purposes.
	 *
	 * @param string $key   Storage key (format: "w3tc_INSTANCEID_HOST_BLOGID_dbcache_HASH").
	 * @param string $group Optional. The group to which the cache belongs. Default is an empty string.
	 *
	 * @return string The file path for the cache entry.
	 */
	public function _get_path( $key, $group = '' ) {
		if ( $this->_use_wp_hash && function_exists( 'wp_hash' ) ) {
			$hash = wp_hash( $key ); // Most common.
		} else {
			$hash = md5( $key ); // Less common, but still used in some cases.
		}

return ( $group ? $group . DIRECTORY_SEPARATOR : '' ) . sprintf( '%s/%s/%s.php', substr( $hash, 0, 3 ), substr( $hash, 3, 3 ), $hash );
	}

/**
	 * Calculates the size of the cache directory.
	 *
	 * Recursively calculates the total size and number of files in the cache directory. Stops processing if the timeout is exceeded.
	 *
	 * @param string $timeout_time The timeout timestamp.
	 *
	 * @return array An array containing the total size (`bytes`), the number of items (`items`), and whether a timeout occurred
	 *               (`timeout_occurred`).
	 */
	public function get_stats_size( $timeout_time ) {
		$size = array(
			'bytes'            => 0,
			'items'            => 0,
			'timeout_occurred' => false,
		);

$size = $this->dirsize( $this->_cache_dir, $size, $timeout_time );

return $size;
	}

/**
	 * Recursively calculates the size of a directory.
	 *
	 * Iterates through all files and subdirectories within the specified directory to calculate the total size and count of items.
	 * Checks for timeouts every 1000 items.
	 *
	 * @param string $path         The directory path.
	 * @param array  $size         {
	 *     The size data array.
	 *
	 *     @type int $bytes             The total size of the directory in bytes.
	 *     @type int $items             The total number of items (files/subdirectories).
	 *     @type bool $timeout_occurred Flag indicating whether a timeout has occurred.
	 * }
	 * @param int    $timeout_time The timeout timestamp.
	 *
	 * @return array Updated size data.
	 */
	private function dirsize( $path, $size, $timeout_time ) {
		$dir = @opendir( $path );

if ( $dir ) {
			$entry = @readdir( $dir );
			while ( ! $size['timeout_occurred'] && false !== $entry ) {
				if ( '.' === $entry || '..' === $entry ) {
					$entry = @readdir( $dir );
					continue;
				}

$full_path = $path . DIRECTORY_SEPARATOR . $entry;

if ( @is_dir( $full_path ) ) {
					$size = $this->dirsize( $full_path, $size, $timeout_time );
				} else {
					$size['bytes'] += @filesize( $full_path );

// dont check time() for each file, quite expensive.
					++$size['items'];
					if ( 0 === $size['items'] % 1000 ) {
						$size['timeout_occurred'] |= ( time() > $timeout_time );
					}
				}

$entry = @readdir( $dir );
			}

@closedir( $dir );
		}

return $size;
	}

/**
	 * Sets a new value if the old value matches the current value.
	 *
	 * This method checks if the current value in the cache matches the provided old value. If they match, it sets the new value.
	 * Cannot guarantee atomicity due to potential file lock failures.
	 *
	 * @param string $key       Cache key.
	 * @param mixed  $old_value The expected current value.
	 * @param mixed  $new_value The value to set if the old value matches.
	 *
	 * @return bool True if the value was set, false otherwise.
	 */
	public function set_if_maybe_equals( $key, $old_value, $new_value ) {
		// Cant guarantee atomic action here, filelocks fail often.
		$value = $this->get( $key );
		if ( isset( $old_value['content'] ) && $value['content'] !== $old_value['content'] ) {
			return false;
		}

return $this->set( $key, $new_value );
	}

/**
	 * Increments a counter stored in the cache by a given value.
	 *
	 * This method appends the increment value to the counter file. If the value is 1, it stores it as 'x' for efficiency. Larger
	 * increments are stored as space-separated integers.
	 *
	 * @param string $key   Cache key.
	 * @param int    $value The increment value (must be non-zero).
	 *
	 * @return bool True on success, false on failure.
	 */
	public function counter_add( $key, $value ) {
		if ( 0 === $value ) {
			return true;
		}

$fp = $this->fopen_write( $key, '', 'a' );
		if ( ! $fp ) {
			return false;
		}

// use "x" to store increment, since it's most often case
		// and it will save 50% of size if only increments are used.
		if ( 1 === $value ) {
			@fputs( $fp, 'x' );
		} else {
			@fputs( $fp, ' ' . (int) $value );
		}

@fclose( $fp );

return true;
	}

/**
	 * Sets a counter value in the cache.
	 *
	 * This method initializes a counter file with the provided value, along with an expiration time and a PHP exit directive to
	 * prevent execution.
	 *
	 * @param string $key   Cache key.
	 * @param int    $value The counter value to set.
	 *
	 * @return bool True on success, false on failure.
	 */
	public function counter_set( $key, $value ) {
		$fp = $this->fopen_write( $key, '', 'wb' );
		if ( ! $fp ) {
			return false;
		}

$expire     = W3TC_CACHE_FILE_EXPIRE_MAX;
		$expires_at = time() + $expire;

@fputs( $fp, pack( 'L', $expires_at ) );
		@fputs( $fp, '<?php exit; ?>' );
		@fputs( $fp, (int) $value );
		@fclose( $fp );

return true;
	}

/**
	 * Retrieves the value of a counter from the cache.
	 *
	 * This method reads the counter file and calculates the total value by counting occurrences of 'x' and summing other stored values.
	 *
	 * @param string $key Cache key.
	 *
	 * @return int The counter value, or 0 if the key does not exist.
	 */
	public function counter_get( $key ) {
		list( $value, $old_data ) = $this->_get_with_old_raw( $key );
		if ( empty( $value ) ) {
			return 0;
		}

$original_length = strlen( $value );
		$cut_value       = str_replace( 'x', '', $value );

$count = $original_length - strlen( $cut_value );

// values more than 1 are stored as <space>value.
		$a = explode( ' ', $cut_value );
		foreach ( $a as $counter_value ) {
			$count += (int) $counter_value;
		}

return $count;
	}

/**
	 * Open the cache file for writing and return the file pointer.
	 *
	 * Ensures the directory structure exists before attempting to open the file.
	 *
	 * @param string $key An MD5 of the DB query.
	 * @param string $group Cache group.
	 * @param string $mode File mode.  For example: 'wb' for write binary.
	 *
	 * @return resource|false File pointer on success, false on failure.
	 */
	private function fopen_write( $key, $group, $mode ) {
		// Get the storage key (format: "w3tc_INSTANCEID_HOST_BLOGID_dbcache_$key").
		$storage_key = $this->get_item_key( $key );

// Get the subpath for the cache file (format: [0-9a-f]{3}/[0-9a-f]{3}/[0-9a-f]{32}).
		$sub_path = $this->_get_path( $storage_key, $group );

// Ge the entire path of the cache file.
		$path = $this->_cache_dir . DIRECTORY_SEPARATOR . $sub_path;

// Create the directory if it does not exist.
		$dir = dirname( $path );

if ( ! @is_dir( $dir ) ) {
			if ( ! Util_File::mkdir_from( $dir, dirname( W3TC_CACHE_DIR ) ) ) {
				return false;
			}
		}

// Open the cache file for writing.
		return @fopen( $path, $mode );
	}

/**
	 * Flushes cache files matching a specific regex pattern.
	 *
	 * This method scans a directory and removes cache files that match the provided regular expression. Supports multisite setups.
	 *
	 * @since 2.7.1
	 *
	 * @param string $regex The regular expression pattern to match file names.
	 *
	 * @return void
	 */
	private function _flush_based_on_regex( $regex ) {
		if ( Util_Environment::is_wpmu() && ! Util_Environment::is_wpmu_subdomain() ) {
			$domain    = get_home_url();
			$parsed    = parse_url( $domain );
			$host      = $parsed['host'];
			$path      = isset( $parsed['path'] ) ? '/' . trim( $parsed['path'], '/' ) : '';
			$flush_dir = W3TC_CACHE_PAGE_ENHANCED_DIR . DIRECTORY_SEPARATOR . $host . $path;
		} else {
			$flush_dir = W3TC_CACHE_PAGE_ENHANCED_DIR . DIRECTORY_SEPARATOR . Util_Environment::host();
		}

$dir = @opendir( $flush_dir );
		if ( $dir ) {
			$entry = @readdir( $dir );
			while ( false !== $entry ) {
				if ( '.' === $entry || '..' === $entry ) {
					$entry = @readdir( $dir );
					continue;
				}

if ( preg_match( '~' . $regex . '~', basename( $entry ) ) ) {
					Util_File::rmdir( $flush_dir . DIRECTORY_SEPARATOR . $entry );
				}

$entry = @readdir( $dir );
			}

@closedir( $dir );
		}
	}
}

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