MySQLi Prepared Statement not executing

Question

The following code runs without any errors but doesn't actually delete anything:

      $update = $mysqli->prepare('DELETE FROM table WHERE RetailerID = ? AND Amount = ? AND FXRate = ?');
      $update->bind_param('iii', $rID, $base_value, $fx_rate);
      $update->execute();
      $update->close();

I have numerous mysqli prepared statments in this same file that execute fine, but this one is the only one that doesn't modify the table. No errors or shown, but the row isn't deleted from the table either. I have verified that $rID, $base_value, and $fx_rate are the correct values, and a row is DEFINITELY present in table that matches those values.

The only difference between this statement and the others are the parameters and the fact that it's DELETE instead of SELECT or UPDATE. I also tried doing a SELECT or UPDATE instead of DELETE using the same WHERE parameters, but no luck. The issue seems to be that it's not finding a row that fits the WHERE parameters, but like I said, the row is definitely there.

Any ideas?

Answer 1

Is amount an integer or a double? You're converting to integer ('iii'), but I presume it'll be $0.34 or similar. Try 'idi' instead.

Edit: same applies for rate - is that an integer or double too?