multi-dim array quandary

[mskalmus]

I'm calling a function that assigns value to a multi-dim array key using a switch function; however, the first time I call the function, the value assigned to the key is truncated. For instance, in the snippet below, a value of '1' for the var $grind results in the key 'grindtype' being assigned the value 'B', not 'Beans'. Subsequent calls to this function in the same session perform as expected.

$grind = $_GET['grind'];

  switch($grind)
  {
    case '1':
      $_SESSION['basket'][$prodid]['grindtype'] = 'Beans';
      break;

    case '2':
      $_SESSION['basket'][$prodid]['grind'] = Drip;
      break;

    case '3':
      $_SESSION['basket'][$prodid]['grindtype'] = 'French Press';
      break;

    case '4':
      $_SESSION['basket'][$prodid]['grindtype'] = 'Espresso';
      break;
  }