file_directory_temp

file_directory_temp()

function file_directory_temp() {
  $temporary_directory = \Drupal::config('system.file')->get('path.temporary');
  if (empty($temporary_directory)) {
    // Needs set up.
    $config = \Drupal::configFactory()->getEditable('system.file');
    $temporary_directory = ComponentFileSystem::getOsTemporaryDirectory();

    if (empty($temporary_directory)) {
      // If no directory has been found default to 'files/tmp'.
      $temporary_directory = PublicStream::basePath() . '/tmp';

      // Windows accepts paths with either slash (/) or backslash (\), but will
      // not accept a path which contains both a slash and a backslash. Since
      // the 'file_public_path' variable may have either format, we sanitize
      // everything to use slash which is supported on all platforms.
      $temporary_directory = str_replace('\\', '/', $temporary_directory);
    }
    // Save the path of the discovered directory. Do not check config schema on
    // save.
    $config->set('path.temporary', (string) $temporary_directory)->save(TRUE);
  }

  return $temporary_directory;
}