<?php namespace nur\b\params\impl; use nur\b\params\IParametrable; use nur\b\params\Tparametrable1; class BPB2 extends BPB1 implements IParametrable { use Tparametrable1; const PARAMETRABLE_PARAMS_SCHEMA = [ "first" => "?string", "second" => "?int", ]; private $ppSecond; function getData() { return [$this->getFirst(), $this->ppSecond]; } }