blank cart code data database date email idk insert item items key mysql needed order orders paydate payer position post qty quantity query sending todays username values working wtf

I had it sending my needed order data to my database, but yesterday and todays orders both have a blank item name and 0 set for quantity. I didnt change anything, did e-junkie?

Here is my code.

$time = date("m/j/Y g:i:s");
$email = $_POST['payer_email'];
$item = $_POST['item_name'];
$qty = $_POST['quantity'];
$code = $_POST['key'];

mysql_query("INSERT INTO orders (paydate, username, items, qty, code) VALUES ('$time', '$email', '$item', '$qty', '$code')");

It was working, now it is not?

$x = $_POST['item_cart_position'];

mysql_query("INSERT INTO orders (paydate, username, items, qty, code) VALUES ('$time', '$email', '$item . $x', '$qty . $x', '$code')");

? $idk = 'wtf' ?