gistfile1.php

<?php
class Exemple {}

$object = new Exemple();

$object->attribut1 = 1;
$object->attribut2 = 2;
$object->attributX = 'x';

var_dump($object);

// Affiche
object(Exemple)#1 (3) {
  ["attribut1"] => int(1)
  ["attribut2"] => int(2)
  ["attributX"] => string(1) "x"
}