Comments on: Fake Fork in PHP

By: fork e javascript - Pagina 3 | hilpers

fork e javascript - Pagina 3 | hilpers — Sun, 18 Jan 2009 13:10:48 +0000

[...] HTTP. Quindi, l’unica e’ non fare mai exit o kill dai figli. Dai anche una occhiata a questo: http://joseph.randomnetworks.com/arc…e-fork-in-php/ >> Altrimenti non ti rimane che far scrivere in un vettore IPC lo stato, >> e quando [...]

By: XSet » Blog Archive » Parallel Processing in PHP

XSet » Blog Archive » Parallel Processing in PHP — Thu, 25 Sep 2008 13:52:41 +0000

[...] Of course in the LAMP development world a quick and dirty hack is often as good as a well rounded programmewd solution. Joseph Scott shows you how to use a Linux execution feature (namely forking a command into the background using and ampersand) to parallelise applications that don’t need to return anything. I’ve actually used this technique to build a one hit multiplexor for various applications: Quick and dirty fake fork for non returning scripts [...]

By: Observer

Observer — Mon, 23 Jun 2008 10:45:35 +0000

Another way to perform several tasks simultaneously is by using stream_select(). This is useful in the cases where you php script makes many requests to multiple other websites.

In one of my web scripts, I had to make up to 24 http requests. When I done it sequentially, it took over 1 minute. Now it takes less than 10 seconds. See it and test it here: http://www.info-express.org/website-popularity-checker

By: Daniel Molina

Daniel Molina — Thu, 12 Jun 2008 01:22:49 +0000

Sorry, but this isn’t a fork fake or similar such thing. The system call fork(2) — wrapped arround php with pcntl_fork() function — sets the entry point to the right line of source, instead your implementation that set the entry point to the start of the script.

Play a little with labels if you want the desired results. Also, see the way to save the environment and allocated variables… Be careful y you serialize the $GLOBALS variable.

By: Stephen Hosking

Stephen Hosking — Sat, 17 Nov 2007 04:32:15 +0000

Thanks so much for this! I needed to create a background process and tried pcntl_fork, but couldn’t do it because I’m using Apache. So I was stuck, until I luckily hit this web page. That’s really great Unix work nutting out that command line! I fiddled with it a bit, and worked out 1. You do seem to need all those options – “&” is not enough, and 2. in ‘< &- ‘ the space is not necessary, ‘<&- ‘ works fine.

Thanks again!

By: ferdhie

ferdhie — Wed, 21 Mar 2007 14:26:25 +0000

I’ve tried with ping, but the apache seems to wait for the request to return
exec(“ping yahoo.com 2>&1 1>/tmp/ping.log &”);
got any idea?

By: Breyten’s Dev Blog » Blog Archive » links for 2005-11-02

Breyten’s Dev Blog » Blog Archive » links for 2005-11-02 — Sat, 08 Apr 2006 17:54:35 +0000

[...] Joseph Scott’s Blog » Fake Fork in PHP “here are times when it would be really handy to perform a fork in PHP when it is running as an Apache module. There is a way to fake this, sort of.” (tags: php) [...]