function _update_manager_unique_identifier in Drupal 7

Same name and namespace in other branches

1. 8 core/modules/update/update.module \_update_manager_unique_identifier()
2. 9 core/modules/update/update.module \_update_manager_unique_identifier()
3. 10 core/modules/update/update.module \_update_manager_unique_identifier()

Returns a short unique identifier for this Drupal installation.

Return value

An eight character string uniquely identifying this Drupal installation.

2 calls to _update_manager_unique_identifier()

_update_manager_cache_directory in modules/update/update.module

Returns the directory where update archive files should be cached.

_update_manager_extract_directory in modules/update/update.module

Returns the directory where update archive files should be extracted.

File

modules/update/update.module, line 902

Handles updates of Drupal core and contributed projects.

Code

function _update_manager_unique_identifier() {
  $id =& drupal_static(__FUNCTION__, '');
  if (empty($id)) {
    $id = substr(hash('sha256', drupal_get_hash_salt()), 0, 8);
  }
  return $id;
}