Question

there is something wrong with my query but I have no idea what the problem is.

Here are my queries:

$result=mysql_query("UPDATE user_info SET Money = '$newmoney' WHERE Username ='$user'"); 

$result=mysql_query("INSERT INTO order (username, amount, stock, company) VALUES 
('$user','$amount','$stock','$symbol')");

When I run it the first query works, but the second doesn’t. There are now errors given.
Any help would be great, thank you.

Answer 1

order is a reserved word. Quote it with backticks:

$result = mysql_query("
  INSERT INTO `order`
    (username, amount, stock, company)
  VALUES
    ('$user','$amount','$stock','$symbol')
");

Furthermore, notice that on the PHP manual page for the mysql_query() function, it states in a big red box:

Suggested alternatives

Use of this extension is discouraged. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include:

• mysqli_query()
• PDO::query()