bide böyle bir dene bakalım
for($i = 0; $i < count($atclist); $i++)
{
$atcLogin=$atclist[$i][37];
$atcID=$atclist[$i][1];
$atcName=$atclist[$i][2];
if (substr($atclist[$i][0],-4,4) == "ATIS" || substr($atclist[$i][0],-3,3) == "OBS") continue;
$tabloAdi="".date('Y').strtolower(date('F'));
$tabloYap="CREATE TABLE IF NOT EXISTS $tabloAdi (`onlineid` int(11) NOT NULL AUTO_INCREMENT,`onlinevatsimid` int(11) NOT NULL,`onlinename` varchar(50) NOT NULL,`onlinetime` int(11) NOT NULL,`onlinelogin` varchar(14) NOT NULL,PRIMARY KEY (`onlineid`)) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1";
if (date('j')=="1") mysql_query($tabloYap);
$tabloYaz="insert into $tabloAdi (onlinevatsimid,onlinename,onlinetime,onlinelogin) values ('$atcID','$atcName','$atcOnline','$atcLogin')";
$tabloDuzenle="update $tabloAdi set onlinetime='$atcOnline' where onlinevatsimid='$atcID' and onlinelogin='$atcLogin'";
$kontrol=mysql_num_rows(mysql_query("SELECT * FROM $tabloAdi where onlinevatsimid='$atcID' and onlinelogin='$atcLogin'"));
if ($kontrol>0){
mysql_query($tabloDuzenle);
}
else{
mysql_query($tabloYaz);
}