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Posted by Michael Austin on 11/18/88 11:40
d wrote:
> "Michael Austin" <maustin@firstdbasource.com> wrote in message
> news:12aKf.32547$Jd.19077@newssvr25.news.prodigy.net...
>
>>Francois Bonzon wrote:
>>
>>
>>>Any idea how I can launch a background task from a PHP script?
>>>
>>>For example, when a user posts on my message board, it may fire many
>>>e-mail notifications to other users, and other tasks. I want the posting
>>>confirmation page to end displaying quickly, without waiting for those
>>>notifications or other tasks to complete.
>>>
>>>So basically what I want is to launch 'background.php' from 'main.php',
>>>with the user seeing only the output of - and waiting only for the end
>>>of - 'main.php'. Without the need to wait for the end of the possibly
>>>long 'background.php', like if I had simply included it in 'main.php'.
>>>
>>>According to the PHP Manual, the function register_shutdown_function()
>>>was the solution "in PHP 4.0.6 and earlier under Apache", but "since PHP
>>>4.1 the shutdown functions are called as the part of the request" so that
>>>PHP waits until the shutdown functions are completed before closing the
>>>connection to the user.
>>>
>>>E.g. in PHP 4.1+ this
>>>
>>><?php
>>>function background () {
>>> echo 'Starting background task... ';
>>> // Do something long that I don't want the user to see or wait for
>>> sleep(5);
>>> echo 'End of background task. ';
>>>}
>>>
>>>echo 'Starting main script... ';
>>>register_shutdown_function('background');
>>>echo 'End of main script. ';
>>>?>
>>>
>>>will output:
>>>
>>>Starting main script... End of main script. Starting background task...
>>>End of background task.
>>>
>>>I want a way to output only:
>>>
>>>Starting main script... End of main script.
>>>
>>>and do the remaining in background.
>>>
>>
>>
>>What platform are you on?
>>
>>if this is UNIX then you can do an exec() or system() call or something
>>like
>>`./executethisfile > out.log &`
>>note these are back-ticks (key on the top row far left ~` )
>>
>>the "&" tells the shell script to execute in the background. Not sere how
>>you would accomplish this on the Windows platform, but then again if you
>>are doing anything serious, Windows is not your server platform.
>
>
> Grow up :) There are plenty of serious things one can do on Windows, infact
> some one can only do on Windows.
I have not found anything "serious" I can do on windows that I can't do on other
platforms - and MY primary OS does not end in IX. :)
--
Michael Austin.
DBA Consultant
Donations welcomed. Http://www.firstdbasource.com/donations.html
:)
Long Live OpenVMS.
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