+1.. Assuming you have had a 100% success rate of getting cars to their destination on time for years; If for some reason you can't set up a cron job, you _could_ have a browser do the cron-ing for you; a page with an ajax script that kicks off the check-for-recent-events script on the server. granularity in milliseconds :) if you have a windowing system on the server, you can run that browser script on the server ;) But if i were boss of such an operation, i'd have all cars outfitted with gps, and have the gps monitoring app call up urls on my server to indicate car status & location. i agree this could be non-trivial, as something has to compare car location gps coordinates to dropoff location coordinates, and if there are many cars on the road, it's less than ideal to have the php server do all the coordinate checking. But there would be many benefits to a gps installation (with a "panic" and "car-trouble" button in the vehicle). RFID tags also might be a solution, one that could cost less to install and operate. On Mon, Mar 15, 2010 at 10:17 AM, Lester Caine <lester@xxxxxxxxxxx> wrote: > Alex Major wrote: >> >> I'm currently looking at building a web application, however I've run into >> an area of development I've not come across before. The web site in its >> basic form allows users to send cars from a point and then the car will >> arrive at another point. When the car is set on its way, the start time, >> travel duration and end time are all known and stored in a MySQL database, > > The question HAS to be asked ... how do you know the actual travel time ;) > I think I would be expecting to have to enter something on arrival .... > > -- > Lester Caine - G8HFL > ----------------------------- > Contact - http://lsces.co.uk/wiki/?page=contact > L.S.Caine Electronic Services - http://lsces.co.uk > EnquirySolve - http://enquirysolve.com/ > Model Engineers Digital Workshop - http://medw.co.uk// > Firebird - http://www.firebirdsql.org/index.php > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
