Watchdog логирование в Drupal 7

watchdog('sklad', 'my error message');
watchdog($type = 'sklad', $message = $value, $variables = array(), $severity = WATCHDOG_INFO, $link = NULL);
 
function watchdog_severity_levels() {
  return array(
    WATCHDOG_EMERGENCY => t('emergency'), 
    WATCHDOG_ALERT => t('alert'), 
    WATCHDOG_CRITICAL => t('critical'), 
    WATCHDOG_ERROR => t('error'), 
    WATCHDOG_WARNING => t('warning'), 
    WATCHDOG_NOTICE => t('notice'), 
    WATCHDOG_INFO => t('info'), 
    WATCHDOG_DEBUG => t('debug'),
  );
}

https://api.drupal.org/api/drupal/includes%21bootstrap.inc/function/watchdog/7.x