Posted by Jerry Stuckle on 08/04/07 02:22

Big Moxy wrote:
> Would someone be so kind as to tell me what is wrong with this code?
>
> (1) This code block indicates the session variable nomex is null.
> if (is_null($_SESSION['nomex'])){
> echo " is null.";
> }
> else {
> echo " is not null.";
> }
>
> (2) However on the same page this code block always adds 100 to the
> price.
> if ($_SESSION['nomex'] != "^^no^^"){

If it wasn't defined before, it is now.

> if (!is_null($_SESSION['nomex'])){

So this will never be true.

> // NOMEX Lining
> $new_price = $new_price + 100;
> }
> }
> echo "$".$new_price;
>
> Thank you very much!!
>

BTW - if you're checking to see if something is set, isset() is better.
But either way, check BEFORE you reference it.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

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