Description:
------------
The documentation ( http://us3.php.net/manual/en/function.apache-child-terminate.php )does not make it clear that apache_child_terminate is not available in Apache 2.

Reproduce code:
---------------
<?php
echo "Goodbye.";
apache_child_terminate();
?>

Expected result:
----------------
Goodbye.

* Apache child process terminates at end of script execution.

Actual result:
--------------
Goodbye.
Fatal error: Call to undefined function apache_child_terminate() in /var/www/test.php on line 3

* Apache child process does not terminate at end of script execution.