Description:
------------
Setting output_handler (either through php.ini our .htaccess) does not work with custom functions. It works for "ob_gzhandler" but *not* on any custom functions--say "foo".

There was a detail discussion on c.l.php about this http://groups.google.com/groups?as_umsgid=1114004547.490393.294850@z14g2000cwz.googlegroups.com

Though we could set custom callback functions through ob_start(), we couldn't set output_handler (for custom functions) via php.ini. The manual also hints that it could be set PHP_INI_PERDIR basis http://in2.php.net/ref.outcontrol#AEN111555

Peace to you all PHP saints...

-R. Rajesh Jeba Anbiah

Reproduce code:
---------------
in php.ini set:
output_handler "foo_callback"

in test.php:
<?php
function foo_callback($buffer) //callback defined

{
   return $buffer;
}

print_r(ob_list_handlers());
?>

Expected result:
----------------
"foo_callback" to be listed

Actual result:
--------------
nothing. (Callback not registered.)