Question

I know I can reference a class’ property using a variable as follows:

$field_name = 'first_name';
$myobject->$field_name // references $myobject->first_name

Is there a way I can reference a class property using another class’ property? For example,

$myobject->{$model->field_name} // Does not work

Answer 1

This works for me:

class Foo {
    public $bar = 'baz';
}

class Bar {
    private $baz = 'Hello, World!';

    public function __construct() {
        $foo = new Foo;
        echo $this->{$foo->bar};
    }
}

new Bar;

It prints:

Hello, World!