Merges max-age values (expressed in seconds), finds the lowest max-age.

Ensures infinite max-age (Cache::PERMANENT) is taken into account.

Parameters

int ...: Max age values to merge.

Return value

int The minimum max-age value.

10 calls to Cache::mergeMaxAges()

AccessResult::inheritCacheability in core/lib/Drupal/Core/Access/AccessResult.php

Inherits the cacheability of the other access result, if any.

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

The maximum age for which this object may be cached.

BlockAccessControlHandler::mergeCacheabilityFromConditions in core/modules/block/src/BlockAccessControlHandler.php

Merges cacheable metadata from conditions onto the access result object.

CacheableMetadata::merge in core/lib/Drupal/Core/Cache/CacheableMetadata.php

Merges the values of another CacheableMetadata object with this one.

CachePluginBase::getCacheMaxAge in core/modules/views/src/Plugin/views/cache/CachePluginBase.php

Gets the max age for the current view.

... See full list

File

core/lib/Drupal/Core/Cache/Cache.php, line 69

Class

Cache

Helper methods for cache.

Namespace

Drupal\Core\Cache

Code

public static function mergeMaxAges(...$max_ages) {
  // Remove Cache::PERMANENT values to return the correct minimum value.
  $max_ages = array_filter($max_ages, function ($max_age) {
    return $max_age !== Cache::PERMANENT;
  });
  // If there are no max ages left return Cache::PERMANENT, otherwise return
  // the minimum value.
  return empty($max_ages) ? Cache::PERMANENT : min($max_ages);
}

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