RE: [PHP-DEV] Bug #13433 Updated: Returning Booleans from COM is broken in 407
| From: | Harald Radi | Date: | Thu, 04 Oct 2001 20:38:15 +0000 |
| Subject: | RE: [PHP-DEV] Bug #13433 Updated: Returning Booleans from COM is broken in 407 | ||
| References: | 1 | Groups: | php.dev |
| Request: | Send a blank email to php-dev+get-67290@lists.php.net to get a copy of this message | ||
this is the one, has anyone tested the actual cvs version ?
> -----Original Message-----
> From: Derick Rethans [mailto:derick@php.net]
> Sent: Thursday, October 04, 2001 10:24 PM
> To: phanto@php.net
> Cc: php-dev@lists.php.net
> Subject: Re: [PHP-DEV] Bug #13433 Updated: Returning Booleans
> from COM is broken in 407
>
>
> Hello,
>
> can you MFH this one too?
>
> Derick
>
> On 4 Oct 2001 phanto@php.net wrote:
>
> > ID: 13433
> > Updated by: phanto
> > Reported By: peterd@telephonetics.co.uk
> > Status: Open
> > Bug Type: COM related
> > Operating System: Windows NT 4 Server
> > PHP Version: 4.0CVS-2001-09-25
> > New Comment:
> >
> > fixed in cvs
> >
> > Previous Comments:
> >
> ----------------------------------------------------------------------
> > --
> >
> > [2001-09-25 11:21:37] peterd@telephonetics.co.uk
> >
> > In PHP 4.07 (RC1, RC2 and latest snapshot, standard windows build)
> > returning a boolean from a COM object is broken.
> >
> > I reported this on PHP-QA a while ago but there was no
> response to it.
> > That report was primarily to do with returning booleans from a
> > database accessed via an ADO COM object. But now I've
> found it's true
> > for all booleans.
> >
> > When you have a COM object returning a boolean, testing
> that boolean
> > for 'trueness' fails.
> >
> > The following script:
> >
> > <?php
> >
> > $obj = new COM('com.object');
> >
> > $arg = $obj->TestFunc(); // Simple function that just
> returns TRUE
> >
> > var_dump($arg);
> >
> > if ($arg == TRUE)
> > echo "arg is true<BR>";
> > elseif ($arg == FALSE)
> > echo "arg is false<BR>";
> > else
> > echo "arg is something else<BR>";
> >
> > if ($arg)
> > echo "<BR>arg is true, but not equal to true<BR>";
> > ?>
> >
> > produces this output:
> >
> > >bool(true)
> > >arg is something else
> > >
> > >arg is true, but not equal to true
> > >
> >
> > Basically, if you test for equality to 'true' it fails, but
> it's also
> > not false. But if you just test directly on the value it
> works fine.
> >
> > I stepped through the source and it appears to be due to the way
> > comparison of booleans is done. The COM object returns a
> boolean by
> > creating a Variant of type BOOL and value -1. whereas PHP
> creates a
> > boolean of type BOOL and value 1. The comparison then
> messes up due
> > to this, I think.
> >
> > I've also tried this with PHP 4.06 and the problem doesn't occur in
> > that version
> >
> >
> ----------------------------------------------------------------------
> > --
> >
> >
> >
> > Edit this bug report at
> > http://bugs.php.net/?id=13433&edit=1
> >
> >
> > --
> > PHP Development Mailing List <http://www.php.net/>
> > To unsubscribe, e-mail: php-dev-unsubscribe@lists.php.net
> > For additional commands, e-mail: php-dev-help@lists.php.net
> To contact
> > the list administrators, e-mail: php-list-admin@lists.php.net
> >
>
> Derick Rethans
>
> ---------------------------------------------------------------------
> PHP: Scripting the Web - www.php.net - derick@php.net
> SRM: Site Resource Manager - www.vl-srm.net
> ---------------------------------------------------------------------
>
>