problema date - risalire al venerdì... !!

[alpeweb]

$checkDay = 5 - date("N");
if($checkDay > 0 ) $addDay=$checkDay;
else $addDay = 7 + $checkDay;

SELECT
`id`
FROM
`table`
WHERE
(`dal` = (date(NOW()) + INTERVAL ".$addDay." DAY ) )