- var_dump: documentation ( source)
<?php
$obj = new stdClass;
$obj->{'123'} = "foo";
echo $obj->{'123'},"\n";
var_dump($obj);
$arr = (array) $obj;
var_dump($arr);
echo $arr['123'];
$o = (object) $arr;
echo 'Recasting to object works: ',$o->{'123'},"\n";