How can I access an object property named as a variable in php?

Question

A Google APIs encoded in JSON returned an object such as this

[updated] => stdClass Object
(
 [$t] => 2010-08-18T19:17:42.026Z
)

Anyone

Answer 1

I'm using php7 and the following works fine for me:

class User {
    public $name = 'john';
}
$u = new User();

$attr = 'name';
print $u->$attr;