PHP Class yii\caching\TagDependency

By calling TagDependency::invalidate, you can invalidate all cached data items that are associated with the specified tag name(s).

Since: 2.0

Author: Qiang Xue ([email protected])

Inheritance: extends yii\caching\Dependency

Public Properties

Property	Type	Description
$tags		a list of tag names for this dependency. For a single tag, you may specify it as a string.

Method	Description
invalidate ( Cache $cache, string \| array $tags )	Invalidates all of the cached data items that are associated with any of the specified [[tags]].
isChanged ( $cache )

Method	Description
generateDependencyData ( Cache $cache ) : mixed	Generates the data needed to determine if dependency has been changed.
getTimestamps ( Cache $cache, string[] $tags ) : array	Returns the timestamps for the specified tags.
touchKeys ( Cache $cache, string[] $keys ) : array	Generates the timestamp for the specified cache keys.

This method does nothing in this class.

protected generateDependencyData ( Cache $cache ) : mixed
$cache	Cache	the cache component that is currently evaluating this dependency
return	mixed	the data needed to determine if dependency has been changed.

Returns the timestamps for the specified tags.

protected getTimestamps ( Cache $cache, string[] $tags ) : array
$cache	Cache
$tags	string[]
return	array	the timestamps indexed by the specified tags.

Invalidates all of the cached data items that are associated with any of the specified [[tags]].

public static invalidate ( Cache $cache, string \| array $tags )
$cache	Cache	the cache component that caches the data items
$tags	string \| array

public isChanged ( $cache )

Generates the timestamp for the specified cache keys.

protected static touchKeys ( Cache $cache, string[] $keys ) : array
$cache	Cache
$keys	string[]
return	array	the timestamp indexed by cache keys

a list of tag names for this dependency. For a single tag, you may specify it as a string.

public $tags