Using global variables in mysqli-extended class

[Guus der Kinderen <kinder@xxxxxx>]

Could someone confirm or deny this? 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 below), you would expect an output like 
"xconstructorytest" however, I'm getting "xy" (the private variable 
$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 variable.

Can anyone confirm this, or explain this behaviour to me?

Regards,

	Guus der Kinderen

// ************ php 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();

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