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Re: Running function in the background? [message #176595 is a reply to message #176594]

Tue, 10 January 2012 16:39

M. Strobel
Messages: 386
Registered: December 2011

Karma:

Senior Member

Am 10.01.2012 17:29, schrieb M. Strobel:
> Am 10.01.2012 02:32, schrieb John Drako:
>> I have a site where users can download files, and I want to enable the
>> users to request files by email. Some of those files are big (not too
>> big for email attachements).
>>
>> What I would like to have the user be able to do is to click on a file
>> and have it emailed to him, but the user shouldn't have to wait for the
>> emailing function to finish (tens of seconds some time) and continue
>> browsing and clicking on other files to email or even leave the site
>> confident that they'll receive the files in their email later.
>>
>> So I would like the emailing functionality to happen in the background
>> and independent from the connection to the browser.
>>
>> Is this possible? Is it doable in PHP directly?
>>
> Damn good question.
>
> As to do it in PHP directly I find
> http://stackoverflow.com/questions/317392/is-process-forking-in-php-apache- a-good-idea
> with links to other questions of this type.
>
> I never did forking in the web server because I consider it
> dangerous, it can kill or hang it or send it into a loop.
>
> I did it like Mike suggested, with cron-jobs running every 10
> minutes, and even with my own daemon "watching" a job file. For
> shared hosting mostly not doable..
>
> /Str.

Addition:

If the at command works okay in your server you can schedule jobs
in your script. I do it in a cgi script calling a shell script,
and this does

echo /usr/local/bin/webblock remove $2 | /usr/bin/at now + 5
minutes 2>/dev/null

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[Message index]

		Running function in the background? By: John Drako on Tue, 10 January 2012 01:32
		Re: Running function in the background? By: Jerry Stuckle on Tue, 10 January 2012 01:43
		Re: Running function in the background? By: The Natural Philosoph on Tue, 10 January 2012 02:06
		Re: Running function in the background? By: Michael Joel on Tue, 10 January 2012 02:50
		Re: Running function in the background? By: Luuk on Tue, 10 January 2012 10:50
		Re: Running function in the background? By: Jerry Stuckle on Tue, 10 January 2012 12:52
		Re: Running function in the background? By: Captain Paralytic on Tue, 10 January 2012 10:03
		Re: Running function in the background? By: John Drako on Wed, 11 January 2012 13:40
		Re: Running function in the background? By: M. Strobel on Tue, 10 January 2012 16:29
		Re: Running function in the background? By: M. Strobel on Tue, 10 January 2012 16:39

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