$user_ids = q("SELECT DISTINCT `uid` FROM %s%scalendars", CALDAV_SQL_DB, CALDAV_SQL_PREFIX);
foreach ($user_ids as $user) $stms = array_merge($stms, wdcal_create_std_calendars_get_statements($user["uid"], false));
$user_ids = q("SELECT DISTINCT `uid` FROM %s%scalendars", CALDAV_SQL_DB, CALDAV_SQL_PREFIX);
foreach ($user_ids as $user) $stms = array_merge($stms, wdcal_create_std_calendars_get_statements($user["uid"], false));