Test my assumptions about how self:: works / late static binding

adam.php

<?php 
/*
http://php.net/manual/en/language.oop5.late-static-bindings.php
*/

class Adam {

const LORD='Adonai';
public $knowledge = self::LORD;
public function getLord() { return self::LORD; }
public function getTrueLord() { return static::LORD; }
}

class Abel extends Adam {
const LORD='Yhwh';
}

$a = new Abel();

echo $a->knowledge, "\n";
echo $a->getLord(), "\n";
echo $a->getTrueLord(), "\n";

output.txt

Yhwh
Adonai
Yhwh