Static Class Member References

[Daniel Kolbo <kolb0057@xxxxxxx>]

Hello PHPers,

I'm having some trouble understanding some PHP behaviour.  The following
example script exhibits the behaviour which I cannot understand.
[code]
<?php

class A
{
	public static $a = 3;
	
	function __construct()
	{
		//self::$a = $this; //[i]
		self::$a =& $this; //[ii]
	}
}

class B extends  A
{	
	function __construct()
	{
		parent::__construct();
	}
}

class C {
	var $c;
	
	function __construct()
	{
		$this->c =& A::$a;
	}
	
}


$c = new C;
$b = new B;
$cee = new C;

var_dump($c->c); // [i] prints object(B), but [ii] prints int 3
var_dump($cee->c); // [i] prints object(B), and [ii] prints object(B)

?>
[/code]

Why does $c->c print 'int 3' ?

I'm nervous to use "self::$a = $this;" because I don't want to be
copying the whole object.  However, isn't $this just a reference to the
object, so "self::$a = $this;" is just copying the reference and not the
actual object, right?

Thanks in advance
`

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