Just replace this function, this might work function get_order_items($id) { $connection = mysql_open(); $query = "select p. Id, oi. Order_id, p.Name, oi.
Quantity, p. Stock, oi. Product_id " .
"from SEOrder_items as oi join SEProducts p on oi. Product_id = p.Id " . "where oi.
Order_id = $id"; $result = mysql_query($query, $connection) or show_error(); mysql_close($connection) or show_error(); $order_items = array(); while ($order_item = mysql_fetch_array($result)) { $order_items = $order_item; } return $order_items; }.
Just replace this function, this might work. Function get_order_items($id) { $connection = mysql_open(); $query = "select p. Id, oi.
Order_id, p. Name, oi. Quantity, p.
Stock, oi. Product_id " . "from SEOrder_items as oi join SEProducts p on oi.
Product_id = p. Id " . "where oi.
Order_id = $id"; $result = mysql_query($query, $connection) or show_error(); mysql_close($connection) or show_error(); $order_items = array(); while ($order_item = mysql_fetch_array($result)) { $order_items = $order_item; } return $order_items; }.
You need to select the field product_id from the database within the function get_order_items. (p. Product_id).
I kinda suck at joins. – JheeBz May 30 at 11:43 There already is a join: join SEProducts as p. Just add p.
Product_id between the SELECT and FROM. – Wesley van Opdorp May 30 at 11:45 Thanks, but sadly this still triggers the error. – JheeBz May 30 at 12:06.
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