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Re: out of sheer curiosity... [message #177560 is a reply to message #177555] Mon, 09 April 2012 21:03 Go to previous messageGo to previous message
Thomas Mlynarczyk is currently offline  Thomas Mlynarczyk
Messages: 131
Registered: September 2010
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Scott Johnson schrieb:

> What would be the reason to serialize an object other then to save it
> for later use, and at the time I can't really come up with a reason for
> that in my mind (lack of experience in this area I suppose)

True, this seems to be the most common use case: Make the object persist
between different HTTP requests.

> Now if you are saving it for later use then the original object would no
> longer exist and the external resources as Jerry explained would no
> longer be available if not for the constructor.

The point is that an unserialized object would usually be in a different
state than a "fresh" object created using the `new` operator and thus
require different initialization tasks to be performed. That's why
different magic methods exist:

__construct(): Object is "fresh", created using `new`
__clone(): Object was copied from another object
__wakeup(): Object was unserialized

Greetings,
Thomas

--
Ce n'est pas parce qu'ils sont nombreux à avoir tort qu'ils ont raison!
(Coluche)
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