function by reference

[tedd <tedd@xxxxxxxxxxxx>]

Hi gang:

Not that I have an immediate need for this, but in other languages 
one can access a function by reference (in other words, it's address 
-- such as call(function address) ).

In php, one can pass a variable by reference by simply using the 
ampersand, such a &$a.

Is there a similar way to reference a function?

Rob, was kind enough to post the following code, but I was looking 
for something where I could store the function's address in a 
variable. Something like:

$a = &f_a();

And then, where I could use call_user_func($a); (or something 
similar) and the function would do it's thing -- anything like that?

Thanks

tedd

--- Rob's suggestion follows.

Like the following?

<?php

function f_a()
{
    echo 'a';
}

function f_b()
{
    echo 'b';
}

function f_c()
{
    echo 'c';
}

$map = array
(
    'a' => 'f_a',
    'b' => 'f_b',
    'c' => 'f_c',
);

$map['a']();
$map['b']();
$map['c']();

?>


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