src/AbstractModule.php
final public function getConfig()
    {
        if (null === $this->config) {
            $this->config = [];

            $configFile = $this->getModuleDir() . PHP_DS . 'config'
                        . PHP_DS . 'system.config.php';

            if (file_exists($configFile)) {
                $this->config = (array) require $configFile;
            }
        }

        return $this->config;
    }
final public function getConfig()
    {
        if (null === $this->config) {
            $this->config = [];

            $configFile = $this->getModuleDir() . PHP_DS . 'config'
                        . PHP_DS . 'system.config.php';

            if (file_exists($configFile)) {
                $this->config = (array) require $configFile;
            }
        }

        return $this->config;
    }
Gets the system configuration, which is necessary for the module.

@return array The system configuration