Re: 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 ---------------------------------------------------------------------