Returns a list of severity levels, as defined in RFC 3164.
Array of the possible severity levels for log messages.
http://www.ietf.org/rfc/rfc3164.txt
watchdog()
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'),
);
}