PHP Singleton scope

Hi,
Might be a stupid question, but I really do not understand.
When creating a singleton pattern class,
it seems to me that on every request to the page, the instance should be recreated,
and I've expected that once I've used the singleton pattern and already created an instance of the class, this instance will be available for me through all pages / users requests.
Please explain me, what exactly I am missing here.

Thanks,
Shmulik

are you taking the piss? i don't think you should be a programmer.