PHP:从对象中获取数据

chr*_*ina 8 php object

我如何user_nicename从这个对象中获取?

BP_User Object
(
    [data] => stdClass Object
        (
            [ID] => 1
            [user_login] => NICENICE
            [user_pass] => $P$BwLHvV7zxcZZ/zW7MY0NXNSmANP.U5.
            [user_nicename] => NICENAME
            ...
Run Code Online (Sandbox Code Playgroud)

我在哪里可以找到资源来学习这个?

Pek*_*ica 23

$variable->data->user_nicename
Run Code Online (Sandbox Code Playgroud)

应该管用.