Description:
------------
Function registered with register_shutdown_function() sometimes is executed / sometimes it is not, after you exit (outside of registered function) - depends on php configuration.

Win+Apache+php5 as mod - shutdown.txt IS NOT created.
Win+Apache+php5 as cgi - shutdown.txt IS created
Win+Apache+php4 as mod - shutdown.txt IS created
Win+Lighttpd+php5 as fcgi - shutdown.txt IS created
Linux+Apache+php4 as mod - shutdown.txt IS created
Linux+Lighttpd+php5 as fcgi - shutdown.txt IS created

I've thought this is a bug on Win+Apache+php5asmod, and reported it, but jani@php.net (http://bugs.php.net/bug.php?id=48475) says it is an expected behavior: "Expected behaviour. exit() is supposed to exit immediately. Nothing is supposed to be run after you call exit."

If this is an expected behavior, then seems like there is a bug on other php configurations.

Reproduce code:
---------------
<?php
function shutdown()
{
	file_put_contents(dirname(__FILE__).'/shutdown.txt', time());
}
register_shutdown_function('shutdown');
exit();
?>

Expected result:
----------------
shutdown.txt should not be created.

Actual result:
--------------
shutdown.txt is created