Description:
------------
NOTE: phpinfo() lists the PHP version as 5.3.3-6

when using pathinfo() on a path, say, '/tmp/ë.txt', it will not give the correct 
filename and basename (but will give the correct path).

Test script:
---------------
// will function correctly
print_r(pathinfo('/var/tmp/aëä.txt'));
// will leave out the first ë
print_r(pathinfo('/var/tmp/ëaä.txt'));
//will leave out ëä
print_r(pathinfo('/var/tmp/ëäa.txt'));


Expected result:
----------------
Array
(
    [dirname] => /var/tmp
    [basename] => aëä.txt
    [extension] => txt
    [filename] => aëä
)
Array
(
    [dirname] => /var/tmp
    [basename] => ëaä.txt
    [extension] => txt
    [filename] => ëaä
)
Array
(
    [dirname] => /var/tmp
    [basename] => ëäa.txt
    [extension] => txt
    [filename] => ëäa
)

Actual result:
--------------
Array
(
    [dirname] => /var/tmp
    [basename] => aëä.txt
    [extension] => txt
    [filename] => aëä
)
Array
(
    [dirname] => /var/tmp
    [basename] => aä.txt
    [extension] => txt
    [filename] => aä
)
Array
(
    [dirname] => /var/tmp
    [basename] => a.txt
    [extension] => txt
    [filename] => a
)