Description:
------------
Hi,

I would like to implement a fine tuned output compression mechanism, and I can't with any of the actual PHP function.
Basically, what I want is a function that does exactly what ob_gzhandler does, but without sending the headers is sends.

I've thought about two possibilities to enable this :

- the first is to implement a generic way to manage the headers buffer, ie a way to delete a header, not just replace it. This is a very generic solution, and I think it would benefit to PHP in general.

- the second would be to add an option, maybe a third parameter, to ob_gzhandler.

What do you think of that ?
At least, it would be worth for me. Maybe for others too ?

Reproduce code:
---------------
Here is an example of a simple thing that don't work, but could be interesting :

<?php

function my_obgz($buffer, $mode)
{
    // This example miss some headers management,
    // but the basic idea is here.
    // And in fact, this headers managmement is impossible
    // with actual the PHP functions.

    $gz = ob_gzhandler($buffer, $mode);

    if ($mode == (PHP_OUTPUT_HANDLER_START | PHP_OUTPUT_HANDLER_END))
    {
        if (strlen($gz) < strlen($buffer)) $buffer =& $gz;
    }
    else $buffer =& $gz;

    return $buffer;
}

ob_start('my_obgz');