PHP: ordinare array di oggetti

es3.php

//$d è un oggetto stdClass
//$newd = new stdClass;
//$newd->ID = "MAIN";
//$newd->NAME = "Look - The Concept Factory";
//$newd->ADDRESS = "Zona industriale Villanova, 19 32013 Longarone (BL) ITALY";
//$newd->TEL = "+390437573060";
//$newd->MAIL = "[email protected]";
//$newd->WEBSITE = "www.lookocchiali.it";
//$newd->DISTANCE = "";
//$newd->DURATION = "";
//$newd->NUMBER = "";
//$newd->MAPS = "https://www.google.it/maps/place/Look+the+Concept+Factory/";

// ordino per il campo number

array_push($allDistance,$d);
                
//var_dump($allDistance);

usort ($allDistance, function ($a, $b){
    if ($a->NUMBER == $b->NUMBER) {
        return 0;
    }
        return ($a->NUMBER < $b->NUMBER) ? -1 : 1;
});

//var_dump($allDistance);