function d8cache_cache_tags_is_valid in Drupal 8 Cache Backport 7

Returns whether the checksum is valid for the given cache tags.

Used when retrieving a cache item in a cache backend, to verify that no cache tag based invalidation happened.

Parameters

int $checksum: The checksum that was stored together with the cache item.

string[] $tags: The cache tags that were stored together with the cache item.

Return value

bool FALSE if cache tag invalidations happened for the passed in tags since the cache item was stored, TRUE otherwise.

1 call to d8cache_cache_tags_is_valid()

D8Cache::checksumValid in ./d8cache.cache.inc

Returns whether the checksum is valid for the given cache tags.

File

./d8cache.module, line 263

Main module file for the D8 caching system backport.

Code

function d8cache_cache_tags_is_valid($checksum, array $tags) {
  return $checksum == _d8cache_cache_tags_calculate_checksum($tags);
}