$tab = array(0.000000, 0.250000, 0.500000, 0.750000, 1.000000, 2.000000);
foreach($tab as $key=>$val) {
if(array_key_exists($key+1, $tab)) {
$qry = "INSERT INTO `table` (c1, c2) VALUES (".$val.", ".$tab[$key+1].")";
}
}DELETE FROM `news` WHERE id IN (1, 2, 3, 12, 42, 54);