Исходное сообщение
"Релиз языка программирования PHP 7.3" Отправлено Аноним, 07-Дек-18 17:20
Выглядит сие высокоуровнево вот так         # first, try from cache         if (is_array($data = self::readCache(self::$cacheId, $items, self::$cacheTimeout))) return $data; # valid cache                  # alas, could not validate cache, do the job retrieving data         $fh = self::lockCache(self::$cacheId);                  # one more verification is needed here due to parallelism         if (is_array($data = self::readCache(self::$cacheId, $items, self::$cacheTimeout, $fh))) return $data; # cache updated by someone and is valid         ... update cache here ...         # write and unlock cache, then return         self::writeCache(self::$cacheId, $data);         self::unlockCache($fh);         return $data