If $query is a CGI.pm object, then the best way is probably: 

myfunc(
    return => $query->param_fetch("return"),
    authors => $query->param_fetch("authors")
);

[download]

(with many more parameters)

Oh, well, then you probably want this instead: 

myfunc(
    map { $_ => $query->param_fetch($_) }
    qw( return authors to their stables immediately )
)
# or
myfunc(
    map { $_ => $query->param_fetch($_) } $query->param()
)

[download]

For the more general problem of "How do I get a reference to a subroutine return value?" (which I thought was an interesting question so I did some investigating), the answer is "you can't". You can get a reference to copies of subroutine return values via: 

$sv= \sub_returning_scalar();
$av= [sub_returning_list()];
$hv= {sub_returning_hash()};

[download]

So if you follow the advice of those who answered before me but part of your unstated goal was to allow the subroutine to modify the parameters such that $query would notice the modifications, then you will fail because those array references will only allow you to modify copies of those values.

The methods I suggested will allow myfunc to modify the CGI parameters directly. This can certainly be a disadvantage if you wanted myfunc to be able to futz with those arrays without affecting the CGI $query object.

        - tye (but my friends call me "Tye")

In reply to (tye)Re: How do I get a reference to a subroutine return value? by tye
in thread How do I get a reference to a subroutine return value? by Anonymous Monk

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