Re: Re: Numerical Recipe - Scheduling Question

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2009/5/29 bruce <bedouglas@xxxxxxxxxxxxx>:
> 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?

$timestamp = time() + $num_secs;

-Stuart

-- 
http://stut.net/

> -----Original Message-----
> From: Shawn McKenzie [mailto:nospam@xxxxxxxxxxxxx]
> Sent: Friday, May 29, 2009 2:48 PM
> To: php-general@xxxxxxxxxxxxx
> Subject:  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
>
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