- var_dump: documentation ( source)
<?php
class User
{
public $address;
}
class Address
{
public $street;
}
function old($key, $default) {
var_dump($default);
}
$address = new Address();
$address->street = 'Street';
$user = new User();
$user->address = $address;
old('address', $user->address ?? '');