Hi there, I hoped someone might be able to tell me why this is not
I have a form that updates the table 'media' with the 3 values below,
that and some other variables are the only data in the table. That works
I then want to update one of the other columns ($E) based on the data
I've just submitted - that is the multiplication of the two variables. I
then want to input this variable back into the table. What happens is
that the new values are used ($C), but the original value in the table
($G) is ignored. Why is this? I would have thought it was pretty
straight-froward to extract 2 values from a table, multiply them
together and then input it back as a new variable.


$query = "UPDATE media SET A='$A', B='$B', C='$C'";
$result = mysql_query($query);
$query = "SELECT C, G FROM media";
$result = mysql_query($query);
$E= "$C*$G";

$query = "UPDATE media SET E='$E'";
$result = mysql_query($query);


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