Get defined const?

        final public function __construct($default = self::__default)
        {
            $this->__reflectionBase  = new ReflectionClass(__CLASS__);
            //$this->__reflectionClass = new ReflectionClass($this->getQualifiedName());
            $this->__reflectionClass = new ReflectionClass(get_class($this));
            $this->__constantsBase   = $this->__reflectionBase->getConstants();
            $this->__constantsClass  = $this->__reflectionClass->getConstants();


            var_dump($this->__constantsBase);
            var_dump($this->__constantsClass);
/*
array(5) {
  ["__default"]=>
  NULL
  ["__STRICT_INTEGER"]=>
  int(1)
  ["__STRICT_STRING"]=>
  int(2)
  ["__STRICT_FLOAT"]=>
  int(4)
  ["__STRICT_SCALAR"]=>
  int(7)
}
array(7) {
  ["APPLE"]=>
  int(1)
  ["ORANGE"]=>
  int(2)
  ["__default"]=>
  NULL
  ["__STRICT_INTEGER"]=>
  int(1)
  ["__STRICT_STRING"]=>
  int(2)
  ["__STRICT_FLOAT"]=>
  int(4)
  ["__STRICT_SCALAR"]=>
  int(7)
}
*/

            // remove private constants from child
            $diff = array_intersect_assoc($this->__constantsBase, $this->__constantsClass);
            foreach($diff as $const => $val)
            {
                if($const == '__default')
                    continue;

                unset($this->__constantsClass[$const]);
            }

            var_dump($this->__constantsBase);
            var_dump($this->__constantsClass);
/*

array(5) {
  ["__default"]=>
  NULL
  ["__STRICT_INTEGER"]=>
  int(1)
  ["__STRICT_STRING"]=>
  int(2)
  ["__STRICT_FLOAT"]=>
  int(4)
  ["__STRICT_SCALAR"]=>
  int(7)
}
array(3) {
  ["APPLE"]=>
  int(1)
  ["ORANGE"]=>
  int(2)
  ["__default"]=>
  NULL
}
*/

            die();