I'm not sure I understand the question either, but if you would like those params in your sub, why don't you pass the query object to the sub?

myfunc($query);

sub myfunc {
    my $query = shift;

}
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If you need the param values in an array ref to pass to the sub then you can use this

my @values = map { $q->param($_) } $q->param;
myfunc(\@values);
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