php, OOP and references

[abstraktmedia]

Hi there...

I was playing a bit with PHP5 and I found some strange behaviours or I just
don't understand....

If I have two classes

 
class A
{
function __construct()
{
     print("A constructor called!<br>");
}
 
function __destruct()
{
     print("A destructor called!<br>");
}
}
 
class B
{
function __construct()
{
     print("B constructor called!<br>");
}
 
function __destruct()
{
     print("B destructor called!<br>");
}
} 

to begin with testing I stated:

$a = new A();
$b = new B(); 

which gave me a pretty odd output....

then I tried with references(although that's depricated in php5)

$a = &new A();
$b = &new B(); 

in both cases B destructor was called after A destructor.....

but isn't the one of main rules in OOP that objects have to be destroyed in the order they were created!?

so I would expect

A constructor called!
B constructor called!
B destructor called!
A destructor called!

Any thoughts on that!?