Where dag niet vandaag is

<?php
$maand = date("m");
$dag = date("d");
$jaar = substr (date("Y"), -2);
$aantaldagenquery = mysql_query("SELECT * FROM log WHERE day!='".$dag."' AND month!='".$maand."' AND year!='".$jaar."' GROUP BY day,month,year ORDER BY year DESC,month DESC, day DESC LIMIT 50") or die (mysql_error()); 
?>

<?php
$maand = date("m");
$dag = date("d");
$jaar = substr (date("Y"), -2);
$aantaldagenquery = mysql_query("SELECT * FROM log WHERE day!='".$dag."' AND month!='".$maand."' AND year!='".$jaar."' GROUP BY day,month,year ORDER BY year DESC,month DESC, day DESC LIMIT 50") or die (mysql_error()); 
?>

$aantaldagenquery = mysql_query("SELECT * FROM log WHERE NOT day='".$dag."' AND month='".$maand."' AND year='".$jaar."' GROUP BY day,month,year ORDER BY year DESC,month DESC, day DESC LIMIT 50") or die (mysql_error());

$aantaldagenquery = mysql_query("SELECT * FROM log WHERE NOT day='".$dag."' AND month='".$maand."' AND year='".$jaar."' GROUP BY day,month,year ORDER BY year DESC,month DESC, day DESC LIMIT 50") or die (mysql_error());