Description:
------------
I've posted this problem to the php.db mailinglist, as well as asked in three different php-related irc-channels, in which no-one could explain this behaviour. Although I haven't been able to reproduce this problem on another machine (none available), I suspect it to be a bug.

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I'm running php5.0.0 with mysqli extention as a Apache2 module on a Windows XP box. I've tested the database by querying it with mysqli (procedural) and results are coming back just fine. This makes me believe that the mysqli-extention is working properly.

Running this code (see 'reproduce code'), you would expect an output like "xconstructorytest" however, I'm getting "xy" (the private member $somevar isn't set and/or read). No reported errors or warnings.

Changing the line that says

 class database_foobar extends mysqli
to
 class database_foobar

gets me the expected result of "xconstructorytest". Somehow, making the class an extention of mysqli, seems to interfere with calling the $somevar member. 


Reproduce code:
---------------
error_reporting(E_ALL);

class database_foobar extends mysqli
{

    private $somevar;

    function database_foobar()
    {
        $this->somevar = "constructor";
        echo "x";
        echo $this->somevar;
    }

    function test()
    {
        $this->somevar = "test";
        echo "y";
        echo $this->somevar;
    }
}

$foo = new database_foobar();
$foo->test(); 

Expected result:
----------------
xconstructorytest

Actual result:
--------------
xy