CUserOptions::DeleteUsersOptions

static function DeleteUsersOptions($user_id=false)
{
	global $DB, $CACHE_MANAGER;

	if ($DB->Query("DELETE FROM b_user_option WHERE USER_ID<>0 AND NAME NOT LIKE '~%'  ".($user_id <> false? " AND USER_ID=".intval($user_id):""), false, "File: ".__FILE__."
Line: ".__LINE__))
	{
		$CACHE_MANAGER->cleanDir("user_option");
		self::$cache = array();
		return true;
	}
	return false;
}