<?php

class SchrodingersPituh {
    public $count = 0;
    public function __construct() {
    }
    public function __toString() {
    	$this->count ^= 1;
    	return $this->count ? '' : '1';
    }
}

function kukarek($pituh) {
	if (!"$pituh") {
		echo "Ne pituh\n";
	}
	if ("$pituh") {
		echo "Pituh\n";
	}
}

kukarek(new SchrodingersPituh());