Shopping cart help PHP : Unique user : <p>I have one unresolved issue.
I have a shopping cart on my local website.</p>

<p>Any type of user can make a order.
With registered - it's ok, understandable.
But what i can do, if user is not authorized, has disabled cookies and javascript?
How should i make unique 'quest' user?
I thought about IP addr, but it can be dynamic or You can visit web site through proxy, so that is not a solution?</p>

<p>Any ideas?</p>
