[PHP] PHP5 - self referencing classes

[Thomas Hebinck]

Hi all,

I have a class which creates a new object and caches this object (see source
at the bottom). The new object holds a link on the creator class.
The __descructor function of both classes are never called - because the
classes are destroyed (killed), when the script terminates.

Is there a way to "destruct" a class on another way manually?

Does anyone know about any deeper documentation about objects in PHP5?

Thanks!

Bye,
Thomas.

-

<?php

class a {

  private $p_b;

  function __construct() {
    echo __CLASS__ . '::' . __FUNCTION__ . '<br>';
  }

  function __destruct() {
    echo __CLASS__ . '::' . __FUNCTION__ . '<br>';
  }

  function get_b() {
    if (!isset($this->b)) {
      $this->b=new b($this);
    }
    return $this->b;
  }
}

class b {
  private $p_caller;

  function __construct($caller) {
    echo __CLASS__ . '::' . __FUNCTION__ . '<br>';
    $this->p_caller=$caller;
  }

  function __destruct() {
    echo __CLASS__ . '::' . __FUNCTION__ . '<br>';
  }
}

$a=new a;
$b=$a->get_b();
unset($a);
unset($b);

?>

Just prints:

a::__construct
b::__construct

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