| public multiSet ( 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. |
| $dependency | yii\caching\Dependency | dependency of the cached items. If the dependency changes, the corresponding values in the cache will be invalidated when it is fetched via [[get()]]. This parameter is ignored if [[serializer]] is false. |
| return | array | array of failed keys |
public function multiSet($items, $duration = 0, $dependency = null)
{
if ($dependency !== null && $this->serializer !== false) {
$dependency->evaluateDependency($this);
}
$data = [];
foreach ($items as $key => $value) {
if ($this->serializer === null) {
$value = serialize([$value, $dependency]);
} elseif ($this->serializer !== false) {
$value = call_user_func($this->serializer[0], [$value, $dependency]);
}
$key = $this->buildKey($key);
$data[$key] = $value;
}
return $this->setValues($data, $duration);
}