Description:
------------
misleading documentation in php.net: Note: As of PHP 5, default values may be 
passed by reference:
http://www.php.net/manual/en/functions.arguments.php#functions.arguments.default

what it currently says:
Note: As of PHP 5, default values may be passed by reference.

what is should say:
Note: As of PHP 5, reference arguments may have default values.

Expected result:
----------------
the meaning of the documentation:

function bar(&$baz = 'baz') { }

Actual result:
--------------
from the current documentation you can understand:

function bar($baz = $foo) { } // syntax error

or:
function bar($baz = &$foo) { } // syntax error