ForkCMS\Bundle\InstallerBundle\Service\RequirementsChecker::checkRequirement PHP Метод

    protected function checkRequirement($name, $requirement, $severity = self::STATUS_ERROR)
    {
        // set status
        $this->errors[$name] = $requirement ? self::STATUS_OK : $severity;
        return $this->errors[$name] == self::STATUS_OK;
    }