Timestamp and database., little help please. |
Timestamp and database., little help please. |
imrie |
Jun 23 2007, 02:38 PM
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#1
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Newbie Group: Members Posts: 15 Joined: 10-April 07 Member No.: 2,477 |
Ok, i have a database of registered members, i want it to say "X members online" when they are logged in. How could i do this. I think is what i need to do is to have a timestamp that logs when they are online every 5-10 mins and calls up the number from the database.
Only question is...........how? thanks. |
Brian Chandler |
Jun 23 2007, 02:57 PM
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#2
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Jocular coder Group: Members Posts: 2,460 Joined: 31-August 06 Member No.: 43 |
There is actually no such thing as "online", since http is a sessionless protocol. So like everyone else, you fake up some nonsense, and pretend that a person is "online" for 5 minutes, or 10 minutes, or whatever the global standard nonsensical figure is. Then you keep a list of "online members" (database table: memberID, timeleft), and each time someone accesses a page, you set their timeleft value to 10 (or whatever), and every minute you run a function that decrements all the timeleft values.
Can I have a patent on that please, since I just invented it? |
imrie |
Jun 23 2007, 03:11 PM
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#3
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Newbie Group: Members Posts: 15 Joined: 10-April 07 Member No.: 2,477 |
o
so when all the other sites say we have 22 members online how do they do it? |
Darin McGrew |
Jun 23 2007, 06:16 PM
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#4
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WDG Member Group: Root Admin Posts: 8,365 Joined: 4-August 06 From: Mountain View, CA Member No.: 3 |
It means that "22 members" have requested a page from the server within the last n minutes, where n is defined by whoever implemented the "members online" feature.
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imrie |
Jun 24 2007, 06:22 AM
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#5
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Newbie Group: Members Posts: 15 Joined: 10-April 07 Member No.: 2,477 |
how would i do that?
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