RE: [PHP-DEV] PHP 4.0 Bug #8139 Updated: NULL and isset
| From: | Sam Liddicott | Date: | Thu, 07 Dec 2000 10:39:54 +0000 |
| Subject: | RE: [PHP-DEV] PHP 4.0 Bug #8139 Updated: NULL and isset | ||
| Groups: | php.dev | ||
| Request: | Send a blank email to php-dev+get-40349@lists.php.net to get a copy of this message | ||
> -----Original Message-----
> From: Joey Smith [mailto:joey@joeysmith.com]
> Sent: Thursday, December 07, 2000 10:33
> To: Richard Heyes
> Cc: PHP Developer List
> Subject: RE: [PHP-DEV] PHP 4.0 Bug #8139 Updated: NULL and isset
>
>
>
>
> On Thu, 7 Dec 2000, Richard Heyes wrote the following to Sam
> Liddicott :
>
> > After being passed by reference and unused (Admittedly a
> rather strange
> > situation) the variable is of type NULL. This would suggest
> that it's set
>
> What?!? This is not true. Try this:
> <?php var_dump($b); ?>
>
> An unset variable has type NULL.
Is NULL becoming more real then, like PERL? I remember a while back when
php4 was in beta it was clearly stated that NULL could never be assigned to
a variable.
Sam