cpt = $cpt; } public function getCpt (): int { return $this->cpt; } public function increment (): void { $this->cpt++; } } RegistryDefaultTest::addEntry('cpt_1', -5); RegistryDefaultTest::addEntry('cpt_2', 12); RegistryDefaultTest::setDefaultEntryName('cpt_1'); var_dump(RegistryDefaultTest::getInstance()->getCpt()); var_dump(RegistryDefaultTest::getInstance('cpt_2')->getCpt()); RegistryDefaultTest::getInstance()->increment(); RegistryDefaultTest::getInstance('cpt_2')->increment(); var_dump(RegistryDefaultTest::getInstance()->getCpt()); var_dump(RegistryDefaultTest::getInstance('cpt_2')->getCpt());