Hi,

Has anybody had any experience with writing a function that takes an  
optional parameter (a parameter with a default value) that is a  
complex object? Can this be done or is it just primitive types?

For example, the following function works:

function do_something( $args=array() )
{
        // do something
}

whereas this function does not appear to work..

function do_something( $args = new ArgumentObject() )
{
        // do something
}

Am I trying to achieve the impossible?
And yes, I am aware that the PHP manual page says scalar values.. ( 
http://nz.php.net/manual/en/functions.arguments.php 
  ) but I wondered whether anybody has achieved what I am after :-)

Thanks,

Phil

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