$sql = "INSERT INTO ? VALUES (?)";
$std = $dbh->prepare($sql) or die("Could not prepare! At table = $table_name because " . $dbh->errstr);
     
for $t (0 .. 1000) {
     $table_name = r.$tables[$t];
     $theValue = $values[$t];
$std->execute($table_name , $theValue) or die("Could not execute!" . $dbh->errstr);
}