Php4 to php5

function get_all_days_products($order_day, $order_month, $order_year)
{
        $conn = connectEfesDB();
        if (!$conn){
                noDBConn($conn);
                exit;
        }

	if($order_day < 10)
		$order_day = "0$order_day";
	if($order_month < 10)
		$order_month = "0$order_month";

	$query = "SELECT distinct P.product_id, product_code
		FROM products as P, order_items as OI, orders as O
		WHERE P.current_product='t'
		and O.order_id = OI.order_id
		and OI.product_id = P.product_id
		and O.delivery_date like '$order_year-$order_month-$order_day%'
		order by P.product_id";

        $products = pg_query($conn, $query);
        
	if (!$products){
                return;
        }
        for ($i=0; $i<pg_numrows($products); $i++){
                $product_list[$i]["id"]   = pg_result($products, $i, 0);
                $product_list[$i]["code"] = pg_result($products, $i, 1);
        }
        return $product_list;
}