Re: How to launch a background task from a web page

On Thu, Oct 30, 2008 at 11:38 AM, Tony Marston <tony@marston-home.demon.co.uk> wrote: > I have some long running scripts which I need to launch from a web page and > have them run in the background, but which should not cause the web page to > wait until the script finishes. Reading the manual on the backtick and > exec() operators seems to imply that the PHP function will be suspended > until the script finishes, which is not what I want. Is this possible in > PHP? There are a number of ways to do this, including (1) setting up the process to be created as a cron job[1], run by cron independently; (2) using a combination of exec('command &')[2] and ignore_user_abort(1)[3] functions to force a command to daemonize and continue running until completes; (3) work out a routine to use process control[4]. All of these presume a *NIX system, of course. Key: 1: http://www.underwaterdesign.com/2006/06/php_create_a_cron_job_with_php.php 2: http://php.net/function.exec 3: http://php.net/ignore-user-abort 4: http://www.php.net/manual/en/ref.pcntl.php -- </Daniel P. Brown> http://www.parasane.net/ daniel.brown@parasane.net || danbrown@php.net Ask me about our current hosting/dedicated server deals!