Re: Re[2]: [PHP-DEV] Weak references in PHP

> Using __destruct method (thanks to George) it may be possible to 
> implement
> what I need, but only if object cache is implemented in C (and so is
> not visible for PHP garbage collector). So no pure PHP solution exits.
> Unfortunately I didn't fins any reference to __destruct method in PHP
> manual and do not understand how it works. If I just declare
> __destruct method in class, it is not invoked when object is
> destructed.

It's in ZE2  have a look at Zend/ZEND_CHANGES in the source tree for 
details (you'll need to be running php5/HEAD).  And it's a userland 
method, so the cache can be implemented in PHP.