- var_dump: documentation ( source)
- spl_object_hash: documentation ( source)
<?php
$a = (object)['a' => 1, 'b' => 2];
$b = (object)['a' => 1, 'b' => 2];
var_dump($a === $b);
var_dump(spl_object_hash($a));
var_dump(spl_object_hash($b));
$c = new \stdClass;
$d = new \stdClass;
// $c->a = 1;
// $d->a = 1;
var_dump($c === $d);
var_dump(spl_object_hash($c));
var_dump(spl_object_hash($d));