function &find_var($one, $two, $three) {
if(($one > 0) && ($one <= 10)) return $one;
if(($two > 0) && ($two <= 10)) return $two;
if(($three > 0) && ($three <= 10)) return $three;
}
$c_one = 'foo';
$c_two = 42;
$c_three = 4;
$right_var = &find_var($c_one, $c_two, $c_three);
$right_var++;
echo "The value of \$c_three and \$right_var are: ";
echo "$c_three and $right_var
\n";
?>