public static function Cache::mergeContexts in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Cache/Cache.php \Drupal\Core\Cache\Cache::mergeContexts()

Merges arrays of cache contexts and removes duplicates.

Parameters

array $a: Cache contexts array to merge.

array $b: Cache contexts array to merge.

Return value

string[] The merged array of cache contexts.

56 calls to Cache::mergeContexts()

ArgumentPluginBase::getCacheContexts in core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php

The cache contexts associated with this object.

AssertPageCacheContextsAndTagsTrait::assertCacheContexts in core/modules/system/src/Tests/Cache/AssertPageCacheContextsAndTagsTrait.php

Ensures that some cache contexts are present in the current response.

AssertPageCacheContextsAndTagsTrait::assertCacheContexts in core/modules/system/tests/src/Functional/Cache/AssertPageCacheContextsAndTagsTrait.php

Ensures that some cache contexts are present in the current response.

AssertViewsCacheTagsTrait::assertViewsCacheTags in core/modules/views/src/Tests/AssertViewsCacheTagsTrait.php

Asserts a view's result & render cache items' cache tags.

AssertViewsCacheTagsTrait::assertViewsCacheTagsFromStaticRenderArray in core/modules/views/src/Tests/AssertViewsCacheTagsTrait.php

Asserts a view's result & render cache items' cache tags.

... See full list

File

core/lib/Drupal/Core/Cache/Cache.php, line 31

Class

Cache

Helper methods for cache.

Namespace

Drupal\Core\Cache

Code

public static function mergeContexts(array $a = [], array $b = []) {
  $cache_contexts = array_unique(array_merge($a, $b));
  assert(\Drupal::service('cache_contexts_manager')
    ->assertValidTokens($cache_contexts));
  sort($cache_contexts);
  return $cache_contexts;
}