如何从两个不相关的表中选择

Question

Hey I have a query where i want to get one row from two tables they are not joined as theres no logic for them to be, but i wish to collected the info from both tables in a single query if that is at all possible???

This is my current prepared statement:

SELECT 
   t1.id AS tid, item_name,price,user_name
FROM 
   users t1, items t2
WHERE
    t1.uid=$uid AND t2.id=$item_id AND t2.price <= t1.users_deposit

I made a quick pastie for the code: http://www.paste.to/MjU3NDE=

Currently when i try it and i echo $row['tid']; further into my script i get no output but I equally don't get undefined error. So im thinking the way i select two rows is the problem.

Answer 1

您永远不会定义$row 。

while ($row = $stmt->fetch()) {