From: [EMAIL PROTECTED]
Operating system: Windows NT 4 Server
PHP version: 4.0CVS-2001-09-25
PHP Bug Type: COM related
Bug description: Returning Booleans from COM is broken in 407
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 bug report at: http://bugs.php.net/?id=13433&edit=1
--
PHP Development Mailing List <http://www.php.net/>
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
To contact the list administrators, e-mail: [EMAIL PROTECTED]
