Bug #13433: Returning Booleans from COM is broken in 407

From: peterd@telephonetics.co.uk 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