Re: Updating time in php

On Mon, 2009-01-26 at 21:13 +0000, ceo@l-i-e.com wrote: > > I'll add that if you went the JS route, then it would just be > > replicating the system time, ie replicating the Windows clock. > > Actually, I did this thing once where I included the server time from PHP in the JS, then > calculate the difference, then use JS to show the actual current "time" by offsetting from > the known PHP server NTPD time the number of ELAPSED seconds on the JS side, what time it really > was, regardless of how badly their clock was set. > > It still seems like more of a "because you can" feature than a "because you > should" in general. > > The app I worked on was a countdown clock until some pre-defined event. I don't show the current time, but I've done a couple of sites with online examinations, and a requirement is that the remaining time be shown for a given question-- and when the timer hits 0 it auto submits (there is backend logic for a window of submission time after which the the answer is marked incorrect). People who disable javascript are warned that it is their responsibility to submit in a timely fashion. If someone takes issue with the timer/submission process they are informed to contact the appropriate officials. So, I'd say sometimes this kind of functionality is certainly desirable. Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP