$three = 3;
$four = 4;
$my_pi = 3.14159;
if (($three == $three) and
($four === $four) and
($three != $four) and
($three < $four) and
($three <= $four) and
($four >= $three) and
($three <= $three) and
($my_pi > $three) and
($my_pi <= $four))
print("Yes!
");
else
print("No?
");
?>