Saving an array to a csv file

I'm haveing a heck of a time trying to figure this out.

All I want to do is save a SELECT array (mysql) to a CSV file.

Here's what I'm trying. It

$result = "SELECT product.reference AS sku, product.price - specific_price.reduction AS price, stock_available.quantity, marketplace_product_option.asin1 AS 'product-id', 'ASIN' AS 'product-id-type', product.condition AS 'condition-type'
FROM product, specific_price, stock_available, marketplace_product_option
WHERE product.id_product = specific_price.id_product
AND product.id_product = stock_available.id_product
AND product.id_product = marketplace_product_option.id_product;";

$fp = fopen('/home/aonewebs/public_html/amazon-export.csv', 'w+');
if ($fp && $result) 
{     
       while ($row = mysql_fetch_row($result)) 
       {
          fputcsv($fp, array_values($row)); 
       } 
}

creates an empty file (even though therer are 3000 lines to that array.

I'm sure I'm missing something obvious.

Any and all help greatly appreciated.

Ron