To clarify Laurence's change; This is intended behaviour that you cannot bind a closure to an class defined internally.

Also I think you have a mistake in the example, as you pass a newly created instance of 'A' to the 'A::get_public_vars()' method, but 'A::get_public_vars()' still assumes '$this' in the return statement, not that it would render the practice of binding closures  to internally classes anymore allowed ;-)

Thanks for your reply Kalle. There's indeed an error in my code example, should be as follows:

```
<?php

class A
{
    private $a = 1;
    protected $b = 2;
    public $c = 3;

    static public function get_public_vars($object)
    {
        $get_public_vars = Closure::bind(function($object) {
            return get_object_vars($object);
        }, null, 'stdClass');

        return $get_public_vars($object);
    }
}

var_dump(A::get_public_vars(new A));
```

Now that we can't bind `stdClass`, what's the best way to get *only* the public properties of an object, since get_object_vars() executes from the current scope?

Hi Olivier

For the time being, I can only think of the following posibilities to achieve what you are trying to:

1) Simply create your own stdClass object, or use Anonymous Classes (also available in PHP7)


2) Reflection. This is heavy and really should not be used in production code:
<?php
	class Alphabet
	{
		public $a, $b, $c;
		protected $d, $e, $f;
		private $g, $h, $i;

		public function __construct()
		{
			foreach(range('a', 'i') as $letter)
			{
				$this->{$letter} = random_int(0, 10000);
			}
		}

		public function getPublicVars(Alphabet $alphabet)
		{
			$ref 	= new ReflectionObject($alphabet);
			$props	= [];

			foreach($ref->getProperties(ReflectionProperty::IS_PUBLIC) as $prop)
			{
				$props[$prop->name] = $prop->getValue($alphabet);
			}

			return($props);
		}
	}

	var_dump(Alphabet::getPublicVars(new Alphabet));
?>

3) Casting to an array:
<?php
	class Alphabet
	{
		public $a, $b, $c;
		protected $d, $e, $f;
		private $g, $h, $i;

		public function __construct()
		{
			foreach(range('a', 'i') as $letter)
			{
				$this->{$letter} = random_int(0, 10000);
			}
		}

		public function getPublicVars(Alphabet $alphabet)
		{
			return(array_filter((array) $alphabet, function($key)
			{
				return($key{0} !== "\0");
			}, ARRAY_FILTER_USE_KEY));
		}
	}

	var_dump(Alphabet::getPublicVars(new Alphabet));
?>

This should be considered your last resort (and please do not tell anyone that the code was "promoted" from PHP.net as this is dirty stuff!)

I hope this can guide you a little further in the right direction at least :)

This bug has been fixed in the documentation's XML sources. Since the
online and downloadable versions of the documentation need some time
to get updated, we would like to ask you to be a bit patient.

Thank you for the report, and for helping us make our documentation better.