Re: distinguish between null variable and unset variable
| From: | Shawn McKenzie | Date: | Thu, 22 Jan 2009 20:18:19 +0000 |
| Subject: | Re: distinguish between null variable and unset variable | ||
| References: | 1 2 3 4 5 6 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-287032@lists.php.net to get a copy of this message | ||
Daniel Brown wrote:
> On Thu, Jan 22, 2009 at 15:12, Daniel Brown <danbrown@php.net> wrote:
>> Unfortunately, neither solution would work. isset() will return
>> FALSE even for an instantiated and explicitly-defined NULL variable.
>
> Forgot to mention that, in addition, is_null() will return TRUE
> for both explicitly-set NULL variables and undefined variables alike.
>
That's why I was testing isset() fist, however as you pointed out, that
is crap also. :-(
--
Thanks!
-Shawn
http://www.spidean.com