public function BackendChain::invalidate in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Cache/BackendChain.php \Drupal\Core\Cache\BackendChain::invalidate()

Marks a cache item as invalid.

Invalid items may be returned in later calls to get(), if the $allow_invalid argument is TRUE.

Parameters

string $cid: The cache ID to invalidate.

Overrides CacheBackendInterface::invalidate

See also

\Drupal\Core\Cache\CacheBackendInterface::delete()

\Drupal\Core\Cache\CacheBackendInterface::invalidateMultiple()

\Drupal\Core\Cache\CacheBackendInterface::invalidateAll()

File

core/lib/Drupal/Core/Cache/BackendChain.php, line 161

Class

BackendChain

Defines a chained cache implementation for combining multiple cache backends.

Namespace

Drupal\Core\Cache

Code

public function invalidate($cid) {
  foreach ($this->backends as $backend) {
    $backend
      ->invalidate($cid);
  }
}