Re: [VOTE] Weak References

On Thu, Aug 4, 2011 at 12:35 AM, Jonathan Bond-Caron <jbondc@openmv.com> wrote: > On Wed Aug 3 05:16 PM, Lester Caine wrote: >> Jan Dolecek wrote: >> > I was waiting for this for a while! I wrote a blog post how to get >> > best benefits from weak references: >> > http://blog.juzna.cz/2011/08/weak-references-in-php/ >> > Perhaps this will help showing people what are they good for. >> > > Or you can use various caching algorithms (LRU, MRU, ..) to reduce memory usage: > > $this->cache = new ArrayLimit(2); > $this->cache->add(new LargeObject('A')); > $this->cache->add(new LargeObject('B')); > $this->cache->add(new LargeObject('C')); > $this->cache->count(); // 2 > > To solve a "caching problem" weak references aren't very helpful since > there's no way to know when or which objects will be garbage collected (non-deterministic). > almost every caching mechanism is non-deterministic, so obviously that isn't a problem for a cache. a cache is a cache, because you can regenerate its content anytime, if needed. -- Ferenc Kovács @Tyr43l - http://tyrael.hu