intval(0) == ????

[Bob Bedford]

I can't figure out what does return intaval(0).

I've this code in a function:

$theValue = ($theValue != "" ? intval($theValu e) : NULL);

when I do test this
if $theValue = = NULL then
fails if the value passed is '0' (an edit type on a form).

what's wrong

Bob

[Erwin Moller]

Re: intval(0) == ????

Bob Bedford wrote:
[color=blue]
> I can't figure out what does return intaval(0).
>
> I've this code in a function:
>
> $theValue = ($theValue != "" ? intval($theValu e) : NULL);
>
> when I do test this
> if $theValue = = NULL then
> fails if the value passed is '0' (an edit type on a form).
>
> what's wrong
>
> Bob[/color]

Hi Bob,

I think that you mean: "NULL" instead of NULL.
NULL is NOT a PHP predifined value.
When using in a (dynamically created) query, you should use "NULL" as a
string.

As in:

$SQL = "INSERT INTO myTable (userid,age) VALUES ($userid,$theVa lue)";

Regards,
Erwin Moller

[Janwillem Borleffs]

Re: intval(0) == ????

Bob Bedford wrote:[color=blue]
> I can't figure out what does return intaval(0).
>
> I've this code in a function:
>
> $theValue = ($theValue != "" ? intval($theValu e) : NULL);
>
> when I do test this if $theValue = = NULL then
> fails if the value passed is '0' (an edit type on a form).
>
> what's wrong
>[/color]

Use type comparison:

$theValue === NULL



JW

[Andy Hassall]

Re: intval(0) == ????

On Wed, 02 Feb 2005 16:42:35 +0100, Erwin Moller
<since_humans_r ead_this_I_am_s pammed_too_much @spamyourself.c om> wrote:
[color=blue]
>I think that you mean: "NULL" instead of NULL.
>NULL is NOT a PHP predifined value.[/color]

Yes it is.

http://uk.php.net/manual/en/language.types.null.php#language.types.null.syntax

--
Andy Hassall / <andy@andyh.co. uk> / <http://www.andyh.co.uk >
<http://www.andyhsoftwa re.co.uk/space> Space: disk usage analysis tool

[Erwin Moller]

Re: intval(0) == ????

Andy Hassall wrote:
[color=blue]
> On Wed, 02 Feb 2005 16:42:35 +0100, Erwin Moller
> <since_humans_r ead_this_I_am_s pammed_too_much @spamyourself.c om> wrote:
>[color=green]
>>I think that you mean: "NULL" instead of NULL.
>>NULL is NOT a PHP predifined value.[/color]
>
> Yes it is.
>
>[/color]
http://uk.php.net/manual/en/language...es.null.syntax[color=blue]
>[/color]

Yes, you are right.
SOrry for the misinformation!

Regards,
Erwin Moller