Overloaded functions and function pointers in PHP?

Hi all,

Since PHP is a (weakly) typed language, is it possible to overload functions
based on the type of their argument?

Also, are there function pointers in PHP?


Here's why I'm asking. Consider these two function:


function foo( $arg ) { echo "foo $arg foo\n"; }

function bar() { echo "barfoo"; }


I'd like to be able to do this:

foo('hello');
foo(&bar());

to produce this:

foo hello foo
foo barfoo foo

Is this at all possible (and convenient!) with PHP?

Thanks!
Pete
.

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