Question

Shouldn’t the function return value ($checkZero) be false (boolean)?
The result of the following is ‘zero is zero’. What am I missing?

class CheckZero {
    function __construct() {
        $zero = 3;
        if ($zero === 0) {
            return true;
        }
        else {
            return false;
        }
    }
}

$checkZero = new CheckZero();
if (!$checkZero) {
    echo 'zero is not zero';
}
else {
    echo 'zero is zero';
}

Answer 1

You can’t return from a class constructor. What is returned is the newly created object.

If you var_dump the return value, you’ll see that an object was returned:

object(CheckZero)#1 (0) {
}