Description:
------------
---
From manual page: http://www.php.net/function.session-register-shutdown#refsect1-
function.session-register-shutdown-returnvalues
---

The documentation section 'Description' and 'Return Value' is not the same. At 
"Return Value" is: TRUE on success or FALSE on failure. 

But actual result is: No value is returned. 

Test script:
---------------
<?php

session_start();
session_commit();
echo session_register_shutdown(); // nothing

Actual result:
--------------
Return Value

No value is returned.