What about simply having the script trip a flag that another background
script checks every 60 seconds or so?

Once a minutes a background script checks to see if it needs to preform any
When a user hits a certain page it does an ajax request to trip this flag
and immediately returns.
The next time the background script checks if it needs to do anything, it
sees the tripped flag and preforms the relevant database copy - or whatever


On Tue, Oct 19, 2010 at 9:20 AM, Ferdi <ferdinan...@printo.in> wrote:

> Hi List,
> I have a php page that updates data from one database to another when it is
> run.
> My query is, how can I trigger the execution of this update page from
> another php / javascript without the calling page having to wait for the
> update page to finish?
> Basically, I think the update page needs to use:
> ignore_user_abort(1);
> set_time_limit(0); // I don't think the script will take more than 1 min.
> At the other end I found this:
> 1)
> http://www.mindraven.com/blog/php/run-a-php-script-in-the-background-using-ajax/
> 2) On that page a user suggested using *pclose(popen(‘/usr/bin/php
> /path/to/something.php > /dev/null &’, ‘r’)*
> *    *However, I need this to be usable on windows servers also.
> 3) Finally, would pcntl_exec, pcntl_fork, exec or something be useful for
> me?
> Which of the above 3 options is the better one?
> Other suggestions are welcome :)
> Thanks and Regards,
> Ferdi

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