Re: Re: Possible foreach bug; seeking advice to isolate the problem
| From: | David Harkness | Date: | Wed, 20 Oct 2010 23:16:44 +0000 |
| Subject: | Re: Re: Possible foreach bug; seeking advice to isolate the problem | ||
| References: | 1 2 3 4 5 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-308895@lists.php.net to get a copy of this message | ||
On Wed, Oct 20, 2010 at 11:08 AM, Tommy Pham <tommyhp2@gmail.com> wrote:
> hmm.. About 8-9 years ago I did a project where I used the reference
> in a foreach loop as the OP. unset not only remove the variable but
> also the value in the array. I tried several methods at that time and
> ended up assigning null to get what I wanted without modifying the
> array. I'll have to dig up that project later to see.
>
To be thorough, I ran the same test as above using unset(), and it correctly
clears the reference and leaves $x in tact.
$x = 5;
$y = &$x;
unset($y);
var_dump($x);
--> 5
var_dump($y);
--> NULL
It's quite possible this behavior was changed along the way. I started using
PHP last year with 5.2.
David