使用SUM计算多列中的值

I am using this project as a learning curve plus the the option to use it for our pool team.

I am trying to calculate how many wins/ loses and how many games played.

I have a database named weeks and in there i store quite a few columns but now needing to calculate the total number of wins and loses for all weeks i have searched around and found this page which shows a nice example on how to use SUM.

My table is named weeks and it looks like this

id | fs1 | fs2 | fs3 | => fs12

I have been inserting rows for each week so for example

id | fs1 | fs2 | fs3 | => fs12
1     0     1     0        1           =2 wins
2     0     1     1        1           =3 wins

So using the code from the website i linked to above; this is my code i have at present but its not working.

<?php
include 'db_connect.php';

$sql = "SELECT SUM(fs1 + fs2 + fs3 + fs4 + fs5 + fs6 + fs7 + fs8 + fs9 + fs10 + fs11 + fs12) as TotalWins
"
    . "FROM weeks";
    $result = mysql_query($query) or die(mysql_error());
    $row = mysql_fetch_assoc($result) ;
    $TotalWins =  $row['TotalWins'];

print ($TotalWins); ?>

This code gives me the following error Undefined variable and Query was empty

In MySQL, sum() only takes one argument and the table name goes in the from clause. You can try this:

SELECT SUM(fs1 + fs2 + fs3 + fs4 + fs5 + fs6 + fs7 + fs8 + fs9 + fs10 + fs11) as TotalWins
FROM weeks;