ID: 13433
Updated by: phanto
Reported By: [EMAIL PROTECTED]
Old Status: Open
Status: Closed
Bug Type: COM related
Operating System: Windows NT 4 Server
PHP Version: 4.0CVS-2001-09-25
Previous Comments:
------------------------------------------------------------------------
[2001-09-25 11:21:37] [EMAIL PROTECTED]
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
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