[PHP] OO function overloading?

[Jean-Christian IMbeault]

Is it possible to overload a function is a class. I would like to have 
the same function defined differently depending on the number of 
arguments passed in. For example:

function foo() {}
function foo($a) {}
function foo($a, $b) ()
I know I could do it with:

function foo($a = "", $b = "") {}

But that is such an ugly hack ...

Thanks,

Jean-Christian Imbeault

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