* Default: WANObjectCache::STALE_TTL_NONE
* @return mixed Value found or written to the key
* @note Options added in 1.28: version, busyValue, hotTTR, ageNew, pcGroup, minAsOf
+ * @note Options added in 1.31: staleTTL, graceTTL
* @note Callable type hints are not used to avoid class-autoloading
*/
final public function getWithSetCallback( $key, $ttl, $callback, array $opts = [] ) {
}
/**
- * Disable the use of brief caching for tombstoned keys
+ * Enable or disable the use of brief caching for tombstoned keys
*
* When a key is purged via delete(), there normally is a period where caching
* is hold-off limited to an extremely short time. This method will disable that