WeakReference

&reftitle.intro; Weak references allow the programmer to retain a reference to an object which does not prevent the object from being destroyed. They are useful for implementing cache like structures. WeakReferences cannot be serialized.

&reftitle.classsynopsis; final WeakReference &Methods;

get()); unset($obj); var_dump($weakref->get()); ?> ]]> &example.outputs.similar;

&language.predefined.weakreference.construct; &language.predefined.weakreference.create; &language.predefined.weakreference.get;