Run a php script as a separate thread/process

["Tommy Jensehaugen" <tommy_jensehaugen@xxxxxxxxxxx>]

Hi,
Anyone knows how to start a php script as a separate thread/process from 
another php script?

example.php:

<?php
some logic


execute('separate_script.php');
more logic


?>

The reason why I want to do this is because separate_script.php has to be 
fully executed even if the request for example.php is stopped in the middle 
of "more logic".
I am using PHP Version 4.3.11.

Thank you very much for your help..

Cheers,
Tommy