function test_ok_undeclared_when_ref_parameter()
{
$x = 1;
// this is ok to use $y ... I would rather have people declare $y but
// it's a lost battle so let's accept that and focus on real bugs
foo_ref($x, $passed_by_ref_to_funcall);
echo $passed_by_ref_to_funcall;
}
function test_fp_undeclared()
{
$x = 1;
foo_ref($x, $y);
echo $y;
}