What value is assigned to $ReturnValue for each of the following expressions?

I'm trying to code this out in PHP and I want them all in one file. Every time I do "echo $ReturnValue;" under each of them it gives me a summed up answer instead of individual ones...

$ReturnValue = 2 == 3; $ReturnValue = "2" + "3"; $ReturnValue = 2 >= 3; $ReturnValue = 2 <= 3; $ReturnValue = 2 + 3; $ReturnValue = (2 >= 3) && (2 > 3); $ReturnValue = (2 >= 3) || (2 > 3);