Classes, Constructors, References and Recursion

Hi, I have this piece of code: class test1 {

       var
               $data = 'hi',
               $node = false;

       function test1() {

               $this->node =& new test2($this);

       }

} class test2 {

       var
               $data = 'yoyo',
               $root = false;

       function test2(&$root) {

               $this->root =& $root;

       }

} $test =& new test1(); echo('<pre>'); print_r($test); echo('</pre>'); And it outputs: test1 Object ( [data] => hi [node] => test2 Object

       (
           [data] => yoyo
           [root] => test1 Object
               (
                   [data] => hi
                   [node] =>  *RECURSION*
               )

       )

) while it should output: test1 Object ( [data] => hi [node] => test2 Object

       (
           [data] => yoyo
           [root] => *RECURSION*

       )

) I know there are some difficulties using references in constructors, but I think this should be right.. I'm using PHP/4.3.11. Can anyone tell me what is wrong with this code or why PHP behaves this way? regards, Evert