- var_dump: documentation ( source)
- array_flip: documentation ( source)
<?php
$object = (object) array(
'entity_id' => 99,
);
var_dump($object->entity_id);
$array = array(
(object) array(
'id' => 99,
),
);
$array = array(
NULL,
);
var_dump($array, array_flip($array));
//var_dump($array->entity_id);