PHP JsonSerializable with Reflection in Trait

JsonSerializableWithReflection.php

<?php

trait JsonSerialize
{

	function jsonSerialize()
	{
		$reflect = new ReflectionClass($this);
		$props   = $reflect->getProperties(ReflectionProperty::IS_STATIC | ReflectionProperty::IS_PUBLIC | ReflectionProperty::IS_PROTECTED | ReflectionProperty::IS_PRIVATE);
		
		
		$propsIterator = function() use ($props) {
			foreach ($props as $prop) {
				yield $prop->getName() => $this->{$prop->getName()};
			}
		};
		
		return iterator_to_array($propsIterator());
	}
}


class C implements JsonSerializable
{
	use JsonSerialize;
	
	private $x = 0;
	protected $y = "z";
}

$c = new C();

echo json_encode($c);

/*
{
  "x":0,
  "y":"z"
}
*/