perplexed as to why this is happening...

Howdy, I'm doing a simple db check.. grabbing a db value, in this case $sec, based on the user name registered in the session, I've created a user called test with $sec equal to "2" but when i get to the second echo of $sec the value has changed to "1" and I can't understand why... can some one please give me some idea as to why this is happening? elseif ($_POST['cost'] >=100001){ //query db $res = mysql_query("SELECT sec FROM users WHERE uname='$_SESSION[uname]'"); $num = mysql_numrows($res) ; if ($num == 1) { //get results $sec = mysql_result($res, 0, 'sec'); echo $sec; // pulls out sec as 2 ( as is sposed to ) } if (!$sec = "1"){ echo "<font class='content'>please contact your nearest representive</font>"; } else { echo $sec; // on this echo $sec has changed value from 2 to 1 Cheers Peter "the only dumb question is the one that wasn't asked"