$sql = "UPDATE Users SET name = :username, pass = :userpass, status = :userstatus WHERE id = :userid";
$stmt = $conn->prepare($sql);
$stmt->bindValue(":userid", $_POST["id"]);
$stmt->bindValue(":username", $_POST["name"]);
$stmt->bindValue(":userpass", $_POST["pass"]);
$stmt->bindValue(":userstatus", $_POST["status"]);
$stmt->execute();