Online PHP editor | output for voWcA

<?php class Auto{ private $farba; private $nazov; public function __construct($paFarba, $paNazov){ $this->farba = $paFarba; $this->nazov = $paNazov; } public function getFarba(){ return $this->farba; } public function getNazov(){ return $this->nazov; } public function __toString(){ return "Auto: {$this->nazov} {$this->farba}"; } } function compareNazov($obj1, $obj2){ return strcmp($obj1->nazov, $obj2->nazov); } function compareFarba($obj1, $obj2){ return strcmp($obj1->farba, $obj2->farba); } $cars = array(new Auto("Zlta", "Volvo"), new Auto("Cervena", "Skoda"), new Auto("Zelena", "Octavia")); $car = new Auto("Fialova", "Toyota"); $length = count($cars); for ($i = 0; $i < $length; $i++){ echo $cars[$i]; echo "<br>"; } usort($cars, "compareNazov"); for ($i = 0; $i < $length; $i++){ echo $cars[$i]; echo "<br>"; } ?>