- var_dump: documentation ( source)
<?php
$obj = new stdClass();
$obj->{123} = "foo";
$obj->{'456'} = "bar";
$arr = (array)$obj;
var_dump($arr);
var_dump($arr['123'], $arr[123]);
var_dump($arr['456'], $arr[456]);
foreach ($arr as $key => $val) {
var_dump($key, $val);
}