symfony2 - accessing private members of $_SESSION
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I've been googling for hours for an answer and couldn't find one.
Since my website has a login system and I would like to use the data in the $_SESSION, I can't seem to get all the data I need, it's private and I need some kind of a function to get it, but without success.

Basically, I have a controller which I do:

    $session = $this->getRequest()->getSession()->all()
which gives all the attributes in the $_SESSION, but I can't seem to be able to access the private attributes which I need since all() returns array.

How can I get these attributes?