require_once ‘users/init.php’;
$conn = DB::getInstance();

$user_id  = 2;
$aaa      = Input::get("aaa");
$bbb      = $_POST["bbb"];
$ccc      = $_POST["ccc"];
$ddd      = $_POST["ddd"];
$eee      = $_POST["eee"];
$fff      = 1;

$query = $conn->prepare("INSERT INTO foo (user_id,aaa,bbb,ccc,ddd,eee,fff) VALUES (:user_id, :aaa, :bbb, :ccc, :ddd, :eee, :fff)");

$query->bindParam(':user_id', $user_id);
$query->bindParam(':aaa', $aaa);
$query->bindParam(':bbb', $bbb);
$query->bindParam(':ccc', $ccc);
$query->bindParam(':ddd', $ddd);
$query->bindParam(':eee', $eee);
$query->bindParam(':fff', $fff);

$query->execute();