If the cache already contains such a key, the existing value and expiration time will be preserved.
public madd ( array $items, integer $duration, yii\caching\Dependency $dependency = null ) : array | ||
$items | array | the items to be cached, as key-value pairs. |
$duration | integer | default number of seconds in which the cached values will expire. 0 means never expire. |
$dependency | yii\caching\Dependency | dependency of the cached items. If the dependency changes, the corresponding values in the cache will be invalidated when it is fetched via [[get()]]. This parameter is ignored if [[serializer]] is false. |
return | array | array of failed keys |