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<?php declare(strict_types=1); trait ControlHelper { public function getControl(string $name = self::CONTROL_TEST): void { echo $name; } } interface ControlInterface { public const CONTROL_TEST = 'test'; public function getControl(string $name = self::CONTROL_TEST): void; } abstract class BasePresenter implements ControlInterface { use ControlHelper; public const CONTROL_TEST = 'overriden'; } class Presenter extends BasePresenter { } $presenter = new Presenter(); $presenter->getControl();
Output for git.master_jit, git.master
overriden

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