Assume that I have a class value object defined in php, where each variable in the class is defined. Something like:

class UserVO {
  public $id;
  public $name;
}

I now have a function in another class, which is expecting an array ($data).

function save_user($data) {
//run code to save the user
}

How do I tell php that the $data parameter should be typed as a UserVO? I could then have code completion to do something like:

$something = $data->id; //typed as UserVO.id
$else = $data->name; //typed as UserVO.name

I'm guessing something like the following, but this obviously doesnt work

$my_var = $data as new userVO();