PHP. Is it possible to use array_column with an array of objects

Question

Is it possible to pass in array_column an array of objects?
I have implemented ArrayAccess interface, but it has no effect.
Should I implement another

Answer 1

While it's not possible to use array_column on child-objects, you can cast them to arrays. This is of course not the way to go, but it's a way.

Using array_map/get_object_vars (doesn't not work in your case, due the containing array)

array_column(array_map('get_object_vars', $thingy), 'property');

Using json_decode/json_encode

array_column(json_decode(json_encode($thingy), true), 'property');

https://eval.in/597950

Note: Using json brings not the same result as using a true recursive function. You’ll lose protected and private properties of the object. But in some situations its fine.

function object_to_array($object) {
  if (is_object($object)) $object = get_object_vars($object);
  return is_array($object) ? array_map(__FUNCTION__, $object) : $object;
}