Re: Cookies & page refresh

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Richard Lynch wrote:
> A cookie is sent BACK to the server after the server sends
> it to the browser. Period.
> 
> It's kind of like when you go to a movie, and you buy your
> ticket from one person, and then you hand it to another,
> and they hand it back, and then you have to be prepared to
> show it to prove you aren't sitting through a second movie.
> 
> Walking back out front to the ticket sales window, you don't
> show them your ticket again...
> 
> Maybe that's not such a good analogy...

You could "fix" it by explaining that no one should check to see whether
you have a ticket before you've had a chance to buy one. The timing just
doesn't make sense.

Developers sometimes make the mistake of checking $_COOKIE (a convenient
representation of the Cookie header from the previous request) before a
Set-Cookie header has been sent to the browser. The browser can't return
something it has never received.

Chris

-- 
Chris Shiflett
http://shiflett.org/

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