function d8cache_emit_cache_tags in Drupal 8 Cache Backport 7

Implements hook_emit_cache_tags().

1 string reference to 'd8cache_emit_cache_tags'

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

File

./d8cache.module, line 45

Main module file for the D8 caching system backport.

Code

function d8cache_emit_cache_tags($tags) {
  $page_cache_tags =& drupal_static(__FUNCTION__, array());
  if (variable_get('d8cache_emit_cache_tags', FALSE)) {
    drupal_add_http_header('X-Drupal-Cache-Tags', implode(' ', $tags));
  }

  // Store the emitted cache tags for further use.
  $page_cache_tags = $tags;
}