RE: [PHP] Re: Numerical Recipe - Scheduling Question

hey shawn... on the strtotime function... it appears to simply take intervals of a string type.. is there a way to have it take intervals of the number of secs? or is there another time function that takes the current date/time, and allows you to add an interval in secs? thanks -----Original Message----- From: Shawn McKenzie [mailto:nospam@mckenzies.net] Sent: Friday, May 29, 2009 2:48 PM To: php-general@lists.php.net Subject: [PHP] Re: Numerical Recipe - Scheduling Question bruce wrote: > Hi.. > > Got a need to be able to allow a user to specify the frequency to run > certain apps/processes.. I need to be able to have the user specify a start > Time, as well as a periodic frequency (once, hourly, daily, weekly...) as > well as allow the user to specify every XX minutes... > > So i basically need to be able to determine when the future > events/occurances are, based on the user input. > > I've searched the net for alogorithms dealing with scheduling and haven't > come up with any php based solutions.. I've also looked at numerical recipes > and some other sources (freshmeat/sourceforge/etc..) with no luck.. > > I have found an approach in another language that I could port to php.. But > before I code/recreate this, I figured I'd see if anyone here has pointers > or suggestions... > > Cron doesn't work for me, as it can run a process at a given time.. but it > doesn't tell me when the next 'X' occurance would be... > > Thoughts/Comments.. > > Thanks > This is confusing. When and where do you need to "be able to determine when the future events/occurances are"? You need to display this after the user schedules the app/process or an admin needs to login and see this at any given time? Regardless it is easy with the PHP time/date functions. Once you've collected and stored the start/stop times and interval, something similar to: $interval = "1 week"; $next = $start_time; while ($next <= $end_time) { $next = strtotime("+$interval", $next); echo date(DATE_RFC822, $next) ."\n"; } -- Thanks! -Shawn http://www.spidean.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php