You are here Home →Help →Composr API Documentation →Class Persistent_caching_filesystemClass Persistent_cachin… →Function Persistent_caching_filesystem->flushFunction Persistent_cac… Function Persistent_caching_filesystem->flush Definitions sources/persistent_caching/filesystem.php Remove all data from the persistent cache. Visibility: public Is abstract?: No Is static?: No Is final?: No Preview Code (PHP) /** * Remove all data from the persistent cache. * */ public function flush()