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Posted by Onideus Mad Hatter on 12/19/07 22:14
On Wed, 19 Dec 2007 19:23:31 +0100, Michael Fesser <netizen@gmx.de>
wrote:
>.oO(macca)
>
>>Facebook shows who's online by identifying which members have been
>>active in the last five minutes.
>>
>>how? I'm not sure? maybe some kind of authentication and reading the
>>apache access log? maybe some kind of database table?
>
>You just have to keep track of active sessions. One way to do this in
>PHP is to use your own session handler, which stores the session data
>and a timestamp in a DB table (or just the timestamp in the DB and the
>session data in flat files, whatever you like). Then you just have to
>fetch all records that were updated in the past 5 minutes or something
>like that.
>
>But even this is just a wild guess and never really accurate. As said,
>HTTP doesn't allow for accuracy here:
>
>* user sends request
>* user gets answer
>* user is gone
>
>It's always the same.
>
>Micha
There are ways of doing it with Java or Flash 9...on the same level of
accuracy you would get with an IRC channel...but that still includes
people who visit a site, leave it on and then go to the grocery store
or whatever.
--
Onideus Mad Hatter
mhm ¹ x ¹
http://www.backwater-productions.net
http://www.backwater-productions.net/hatter-blog
Hatter Quotes
-------------
"You're only one of the best if you're striving to become one of the
best."
"I didn't make reality, Sunshine, I just verbally bitch slapped you
with it."
"I'm not a professional, I'm an artist."
"Your Usenet blinders are my best friend."
"Usenet Filters - Learn to shut yourself the fuck up!"
"Drugs killed Jesus you know...oh wait, no, that was the Jews, my
bad."
"There are clingy things in the grass...burrs 'n such...mmmm..."
"The more I learn the more I'm killing my idols."
"Is it wrong to incur and then use the hate ridden, vengeful stupidity
of complete strangers in random Usenet froups to further my art?"
"Freedom is only a concept, like race it's merely a social construct
that doesn't really exist outside of your ability to convince others
of its relevancy."
"Next time slow up a lil, then maybe you won't jump the gun and start
creamin yer panties before it's time to pop the champagne proper."
"Reality is directly proportionate to how creative you are."
"People are pretty fucking high on themselves if they think that
they're just born with a soul. *snicker*...yeah, like they're just
givin em out for free."
"Quible, quible said the Hare. Quite a lot of quibling...everywhere.
So the Hare took a long stare and decided at best, to leave the rest,
to their merry little mess."
"There's a difference between 'bad' and 'so earth shatteringly
horrible it makes the angels scream in terror as they violently rip
their heads off, their blood spraying into the faces of a thousand
sweet innocent horrified children, who will forever have the terrible
images burned into their tiny little minds'."
"How sad that you're such a poor judge of style that you can't even
properly gauge the artistic worth of your own efforts."
"Those who record history are those who control history."
"I am the living embodiment of hell itself in all its tormentive rage,
endless suffering, unfathomable pain and unending horror...but you
don't get sent to me...I come for you."
"Ideally in a fight I'd want a BGM-109A with a W80 250 kiloton
tactical thermonuclear fusion based war head."
"Tell me, would you describe yourself more as a process or a
function?"
"Apparently this group has got the market cornered on stupid.
Intelligence is down 137 points across the board and the forecast
indicates an increase in Webtv users."
"Is my .sig delimiter broken? Really? You're sure? Awww,
gee...that's too bad...for YOU!" `, )
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