Authorize.net and Size Problem

I think it should be:

$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "ID";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("ID") ."";
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "Name";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("Name") ."";
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "Description";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("Size")." ".$OandACart->DisplayInfo("Description") ."";
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "Quantity";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("Quantity") ."";
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "Price";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("Price") ."";
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "Taxable";
$AuthNet_itemized[1][$nextIndex] = "YES";